Also known as acne inversa, HS causes painful deep lumps in areas where skin touches skin, like under the breasts, inner thighs, and armpits. Eating a healthy diet and increasing physical activity are steps to help cure acanthosis nigricans. Intertrigo is an inflammatory rash that occurs in skin folds, such as the armpits, groin, under the breasts, and within fat folds. Irritated seborrhoeic keratosis But, melasma patches are almost always larger than what we call age spots, sun spots, or liver spots. Seborrhoeic keratosis codes and concepts, 398838000, 403862005, 442348004, 446352002, 394727000, 403867004, 403865007, 403868009, 403864006, 403866008, 102606000, 254669003, 403869001, 403870000, 394728005, 733894009, 403198004, 72100002, Patient information: Seborrheic keratosis (The Basics), Eruptive seborrhoeic keratoses can follow. We avoid using tertiary references. Ask them questions and voice your concerns. In the crease of the neck. 2023 Dotdash Media, Inc. All rights reserved, Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Liu J, Zhao Z, Zhou J, et al. Yeast is a type of fungus. Cleveland Clinic is a non-profit academic medical center. We do not endorse non-Cleveland Clinic products or services. Yes, but use cosmetics that include sunscreen and pay attention to any that may aggravate your melasma by irritating your skin. Typically, its the result of breastfeeding challenges but can also affect women and men who aren't nursing. Symptoms can be mild, moderate or severe. DermNet provides Google Translate, a free machine translation service. There are newer medications, called topical immunomodulators (TIMs), that show progress in treating patients who dont respond to other treatments. Thrush and OtherCandidaInfections. People may use corticosteroid ointments and antibiotics to treat Hailey-Hailey disease. Didn't find the answer you were looking for? It might be appropriate for you to use a different medication to avoid the side effects. Nobles T, Miller RA. Heat Rash. 2. A rash under your breast or breasts, between the folds of skin, is usually caused by a benign (not cancer) skin condition called intertrigo. Breast eczema is annoying and can be embarrassing, but its common and very normal. Always be on the lookout for any allergic reactions. Malignant intertrigo. Inverse psoriasis: From diagnosis to current treatment options. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. If the rash develops into a yeast infection, it can have an unpleasant musty smell. Further support. A combination of immune system activation, genetics, environmental triggers and stress can cause it. Possible symptoms that warrant medical attention may include: A rash under the breast is rarely anything more than an annoyance that causes discomfort. Breast eczema is a chronic condition, which means there isnt a cure. Its known for causing recurring boils and acne-like lesions that can be painful. Lesions can vary in size and quantity, ranging from one lesion under 1 centimeter in diameter to more than 100 plaques across the skins surface. Seborrhoeic keratosis (American spelling - seborrheic keratosis) is also called SK, basal cell papilloma, senile wart, brown wart, wisdom wart, or barnacle. The virus tends to cause cancer in people with weakened immune systems. Along with a breast rash and fatigue, you may notice a wedge-shaped red area or nipple discharge that could contain pus. Your skin is your barricade. Seborrhoeic keratosis. This exam can screen for tumors, cysts, or other, Get the facts on breast infections and how they affect both lactating and non-lactating women. There are some simple things you can do to reduce your risk of getting intertrigo and stop any irritation from getting worse. Policy. Some people may feel embarrassed to allow others to see their skin condition. Cut down on screen time in front of your LED screen television, tablet, mobile phone and computer. While pregnant, be careful to only use topical and oral treatments that are approved for pregnant women. American Academy of Family Physicians. Get useful, helpful and relevant health + wellness information. It primarily occurs due to blocked follicles and a resulting infection. DermNet does not provide an online consultation service. Its important to see a doctor for a contact dermatitis diagnosis so they may rule out other conditions, such as atopic dermatitis and psoriasis. It can have many different appearances. 2007 Aug;20(8):895903. doi: 10.1111/j.1365-2133.2009.09068.x. However, flare-ups of symptoms can occur throughout your life. The rash tends to come and go spontaneously. Consider seeing a doctor if you have a rash under the breasts, especially if it lasts longer than several days. Hida Y, Kubo Y, Arase S. Activation of fibroblast growth factor receptor 3 and oncogene-induced senescence in skin tumours. Where are the discolorations located on your body? ), (https://dermnetnz.org/topics/drug-induced-photosensitivity/), (https://www.aad.org/public/diseases/a-z/melasma-overview), (https://health.gov/our-work/food-nutrition/2015-2020-dietary-guidelines/guidelines/appendix-12/), (https://www.ncbi.nlm.nih.gov/books/NBK279255/#:~:text=What%20does%20skin%20do%3F,as%20germs%20and%20toxic%20substances.). The patch stage of Kaposi sarcoma is the earliest phase of the condition. Treatment for shingles may include antiviral medications from a doctor, as well as OTC pain relievers. With proper treatment, your breast eczema should go away after one to three weeks. This skin disorder can affect your social life if youre feeling self-conscious about it. In: Knoop KJ, Stack LB, Storrow AB, et al, eds. Hailey-Hailey disease is a rare genetic condition that causes a blistering skin rash to pop up on the neck, armpits, skin folds (such as below the breast), and genitals. If you get hives regularly, your doctor may recommend that you see an allergist. But you dont have to just live with it. There are treatment options. arrow-right-small-blue Some people may only require highly active antiretroviral therapy (HAART) to treat Kaposi sarcoma. Do this by avoiding the sun, tanning beds, LED screens, irritating soaps and birth control that includes hormones. pitted skin that feels and looks like an orange peel, an inverted nipple, which points inward rather than outward, a rash that appears suddenly or is spreading, a widespread rash that extends across a large area of your body. i need some help in getting an answer. A yeast infection can also irritate the area below your breasts when yeast enters the body through a crack in skin or injured nipples while breastfeeding. See photos of Kaposi sarcoma lesions on the skin here. Books about skin diseasesBooks about the skin Mod Pathol. Bathe or shower in lukewarm not hot water. Hailey-Hailey disease is a rare inherited disorder that results in a persistent, blistering rash. Brown spots on the breasts can be due to sun rays, allergy, milk rash, acne, ingrown hair, yeast infection, abscess, and even hormonal imbalance. Dendritic (branched) pigmented melanocytes. Spot the signs and symptoms of secondary breast cancer, Pseudoangiomatous Stromal Hyperplasia (PASH), 4. A doctor will likely perform tests to rule out the following: Treating patch stage Kaposi sarcoma depends on several factors, such as: During the patch stage, when people have a few skin lesions, doctors may use the following treatments: For people with AIDS, doctors will focus on treating the late stage HIV infection using anti-HIV drugs. Melasma is a skin condition characterized by brown or blue-gray patches or freckle-like spots. If you have food allergies, then one of the reasons why you must avoid those foods is that they may cause or worsen your breast eczema. Author: Dr Amanda Oakley, Dermatologist, Hamilton, New Zealand, 1997. Ngan V, et al. Expect it to get worse and/or reoccur if you dont take steps such as avoiding the sun and makeups and soaps that irritate your skin. The darker color usually fades after pregnancy. Topics AZ There are diagnostic dermatoscopic clues to seborrhoeic keratosis, such as multiple orange or brown clods (due to keratin in skin surface crevices), white milia-like clods, and curved thick ridges and furrows forming a brain-like or cerebriform pattern. There are three skin stages of Kaposi sarcoma: patch, plaque, and nodule. (2019). The goal is to reduce itching and discomfort and prevent infection and additional flare-ups. One Small Step: Logging Your Psoriasis Flares. It is a very common condition that can occur throughout life. So keep your distance if you suspect you may have it. 14 likes, 0 comments - MARYLYN SKINCARE AND SPA (@marylyn_skincare_spa) on Instagram: "LEDLIGHT THERAPY for a nursing mother ? Is there a history of melasma in your family? Last medically reviewed on February 23, 2023. Melasma typically darkens and lightens over time, often getting worse in the summer and better in the winter. Sirolimus can reduce Kaposi sarcoma lesions. If youve had chickenpox, the varicella zoster virus that causes it remains in your body. However, with a proper skin care routine and treatment, you can reduce its impact. The dominant histopathological features of seborrhoeic keratosis may be described as: An individual seborrhoeic keratosis can easily be removed if desired. Heat rash mainly happens when you sweat more than normal because of heat and humidity. It's a scaly, ring-shaped rash caused by a fungal infection. Irritability, mood swings or a short temper. Mastitis is breast pain, swelling, and itchiness or warmth, often on one side, due to a bacterial infection or irritation from clogged milk ducts. Kaposi sarcoma typically manifests as lesions or tumors on the skin or the moist lining of organs and body cavities, such as inside the mouth. Yes, its possible that your melasma will go away on its own within a few months. You can pick it up from other people, towels, or even pets. See additional information. Intertrigo can also cause a serious infection known as cellulitis. During the patch stage, lesions are flat and can appear as skin discoloration (or spots) in various colors. Their appearance resembles bruises but does not lose color with pressure. The lesions can ultimately cause the skin to crack. The rash may be due to mastitis, which is breast inflammation that is often caused by an infection. Seborrheic dermatitis signs and symptoms may include: Flaking skin (dandruff) on your scalp, hair, eyebrows, beard or mustache. Note that this may not provide an exact translation in all languages, Home The ultraviolet light waves found in sunlight can help certain skin disorders, including eczema. Last medically reviewed on April 25, 2023. A rash under your breasts that lasts more than a few days should be seen by a healthcare provider. There are two main causes of melasma: radiation, whether ultraviolet, visible light, or infrared (heat) light; and hormones. Sometimes lesions may develop in the breast area if youre currently breastfeeding, its possible to pass on the shingles virus to your baby. NIH. But you may be able to avoid the factors listed above which make melasma worse. The human herpesvirus 8 (HHV8) causes Kaposi sarcoma. Cellulitis may become life-threatening if not promptly diagnosed and treated. While HS can affect anyone at any age, it is most common in Black females in their 30s. They appear to stick on to the skin surface like barnacles. Cellulitis is a type of bacterial skin infection. Melasma is a typically chronic disorder. However, there are skin cancers that may mimic melasma, so seeing your dermatologist is often recommended to confirm the correct diagnosis. Journal of Evolution of Medical and Dental Sciences. Cellulitis: All you need to know. Pityriasis rosea. If it doesnt, pursue treatment options with your healthcare provider. Symptoms include pain, itching, or tingling on your skin followed by a rash, sometimes many days later. There is no easy way to remove multiple lesions on a single occasion. //]]> We'd love to keep in touch about news, events and how you can get involved. A topical treatment isnt your only option. Fortunately, melasma typically fades after about three months. Severe itchiness leads to scratching, bleeding, and thickening of the skin bumps (nodules). 2. Reducing skin-to-skin contact and friction can also help. Usually, cooling off with a bath, cold compress, and looser clothing is the only fix you need. Seborrhoeic keratoses are not premalignant tumours. We discuss the characteristics of the stage and how doctors diagnose and differentiate it from other conditions with similar symptoms. Stained face from mixing hydroquinone and benzoyl peroxide, itches, anywhere there is hair like privats and head , body too, The Best IOL for 2022 RXSight Light Adjusted Lens, Will refractive surgery such as LASIK keep me out of glasses all my life, Tanning Themselves to Death: A New Teen Fad. Is the ketogenic diet right for autoimmune conditions? They also produce excess amounts of chemicals that cause inflammation. The condition often occurs under your breasts or in your armpits or groin area. You can reduce itchiness of the rash by applying a wrapped ice pack for 20 minutes at a time, or use a lightly damp wash cloth. I have these light spots under my nose. Mastitis. Methods used to remove seborrhoeic keratoses include: All methods have disadvantages. Blood tests to check for causes of a rash that might be unrelated to breast eczema. A flattened or turned in (inverted) nipple. Acanthosis nigricans is the name for dry, dark patches of skin that usually appear in the armpits, neck or groin. American Academy of Dermatology. The connection between breast eczema and food/drink allergies is unclear. Your soap? Shingles often appears as a single red stripe on one side of your body and could also come with a fever, chills, headache, and upset stomach, per the Centers for Disease Control and Prevention. Her work appears in Women's Health, Prevention, and Self, among other publications. People tend to get more of them as they get older. Reapply cream or ointment two to three times a day. The rash typically clears up on its own after about six to eight weeks and does not require treatment. National Eczema Association. Familydoctor.org. 9500 Euclid Avenue, Cleveland, Ohio 44195 |, Important Updates + Notice of Vendor Data Event, (https://nationaleczema.org/eczema/types-of-eczema/atopic-dermatitis/). A genetic condition, pemphigus is more common among people with Mediterranean heritage. If the infection is more widespread, a doctor may prescribe antifungal medications taken by mouth. Learn more here. The result is clear, fluid-filled blisters and bumps; itchy, prickling red bumps; or goose bump-like areas on your skin. Once you determine the cause of your flare-ups, you may prevent flare-ups from happening as often. A doctor may recommend a combination of measures that can help alleviate and prevent symptoms, such as topical treatments like antibiotics, as well as oral treatments, including steroids and hormonal therapies. Learn how to treat and prevent winter rashes. Loosely translated, the word means black spot. If you have melasma youre probably experiencing light brown, dark brown and/or blue-gray patches on your skin. It generally first develops between ages 30 and 60 and is triggered by stress, skin trauma, or excessive UV light exposure. The center of the patches of ringworm typically is clear at first. Over time, these changes can turn endothelial cells into cancer cells. What Is Eczema? Patches of greasy skin covered with flaky white or yellow scales or crust on the scalp, face, sides of the nose, eyebrows, ears, eyelids, chest, armpits, groin area or under the breasts. It could be a sign of an underlying condition, so it needs to be checked by a GP. Avoiding certain substances can also help. 2015 Oct 1;14(10):111925. As a result, your skin becomes more sensitive and more prone to infection and dryness. You might have your thyroid checked because there does seem to be an association between thyroid disease and melasma. Doctors argue for legislation to curb this dangerous teen trend in the latest Missouri Medicine report. You can treat a sweat rash under breasts by keeping your skin cool. (2022). The patches may develop small bumps, with the rash itself often itchy. You can also reduce the risk of allergic reactions by avoiding your known irritants and prevent heat rash by wearing loose-fitting clothes and staying cool in the heat. Accessed 9/14/2021. If that doesnt work, contact a healthcare professional. disorders of the pituitary gland. Br J Dermatol. (2022). Breast eczema affects the skin on and around your breasts. Symptoms. If it itches, you can apply lotions, lubricants, or hydrocortisone cream. For almost 3 months now, i have been getting a weird pink/brown patch that looks like fish scales under my breast. In the groin area. Skin conditions commonly confused with melasma include: If you have melasma, the results of the biopsy will typically reveal the following: The severity of your melasma can be measured by using the Melasma Area and Severity Index (MASI). If the hormones in your contraception are the cause of your melasma then, yes, it may go away. What cream is best for a rash under breasts? Choose a method of birth control that doesnt include hormones. 4. Its normal to be concerned when you discover a red flush or pimple-like dots on your skin, but a rash under your breast could indicate any number of things. Wear a bra and shirt made from a breathable fabric that wicks away moisture. Symptoms include: Although this type of breast cancer is rare, its important to see a doctor promptly if you have these symptoms. On the underside of the belly or breasts. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. You may encounter flare-ups on your breasts for the rest of your life. Can You Win the Battle Against Cellulite. First your doctor will numb the area . As the condition progresses, the lesion may become larger, more widespread, and turn into slightly raised plaques or nodules. Its known for causing a blistering, painful rash, along with tingling sensations on the affected areas of your skin. Inverse psoriasis is one type of psoriasis. Long-term risks include side effects like high blood pressure, weight gain and thinning of the skin. A dermatologist will be able to perform treatments that your usual healthcare provider may not be able to. American Academy of Family Physicians. After a diagnosis, your healthcare professional can help you learn how to manage this condition with topical creams, powders, and systemic medications. Review. We'll teach you about symptoms, traditional treatments. Water helps keep your skin moist. It may appear dark brown, purple, or gray on darker skin. It isnt vitiligo or eczema. Patch stage lesions sometimes improve without treatment when people with organ transplants switch immune system-suppressing drugs. niams.nih.gov/health-topics/atopic-dermatitis, cdc.gov/groupastrep/diseases-public/Cellulitis.html, nationaleczema.org/eczema/types-of-eczema/contact-dermatitis/, breastcancer.org/benign-breast-conditions/eczema-of-the-nipple, ncbi.nlm.nih.gov/pmc/articles/PMC6465723/, rarediseases.org/rare-diseases/hailey-hailey-disease, aad.org/public/diseases/a-z/hives-overview, cdc.gov/fungal/diseases/ringworm/sources.html, cancer.org/cancer/breast-cancer/about/types-of-breast-cancer/inflammatory-breast-cancer.html, psoriasis.org/about-psoriasis/types/inverse, ncbi.nlm.nih.gov/pmc/articles/PMC5953577/, ncbi.nlm.nih.gov/pmc/articles/PMC6997231/, dermnetnz.org/topics/hidradenitis-suppurativa, niams.nih.gov/health-topics/pemphigus/diagnosis-treatment-and-steps-to-take, aad.org/public/diseases/a-z/pityriasis-rosea-treatment, aad.org/public/diseases/a-z/pityriasis-rosea-overview, aad.org/public/everyday-care/itchy-skin/rash/rash-101, cdc.gov/fungal/diseases/ringworm/risk-prevention.html, nhsinform.scot/illnesses-and-conditions/infections-and-poisoning/shingles, cdc.gov/breastfeeding/breastfeeding-special-circumstances/maternal-or-infant-illnesses/shingles.html, breastcancer.org/benign-breast-conditions/cellulitis, Candidiasis of the Skin (Cutaneous Candidiasis), Debra Rose Wilson, Ph.D., MSN, R.N., IBCLC, AHN-BC, CHT, Debra Sullivan, Ph.D., MSN, R.N., CNE, COI, Medicine Cabinet Must-Haves for Psoriasis. PLoS Biol. Some people inherit a tendency to develop a very large number of them. Kaposi's sarcoma can cause lesions or growths on the skin of the tongue. Most cases of melasma will fade away with time and especially with good protection from sunlight and other sources of light. In some cases, a dermatologist may drain or remove a painful lump. Is there a specific brand of moisturizer that you recommend? However: Very rarely, eruptive seborrhoeic keratoses may denote an underlying internal malignancy, most often gastric adenocarcinoma. Accessed 7/23/20. Skin cancer may by chance arise within or collide with a seborrhoeic keratosis. Your doctor or pharmacist may suggest treatments such as: Speak to your GP or pharmacist about which treatment is best for you. They are uncommon under the age of 20 years. Theyll use a Woods lamp (a black light) to see changes in the color of your skin. Lauren Krouse is a journalist especially interested in covering womens health, mental health, and social determinants of health. Telltale symptoms include breast swelling, warmth, and irritation, purple or reddish skin, and thickening and dimpling of the breast surface that resembles an orange peel. YES LEDLIGHT therapy does not . Melasma appears slowly over a period of weeks or months. Hormone treatments, specifically ones that involve estrogen. Breast eczema (atopic dermatitis) is a condition that causes your skin to become dry, discolored, itchy and bumpy. Inflammatory breast cancer is a rare form of rapidly spreading cancer. Sometimes an allergic reaction can manifest as an itchy or swollen rash or flush of hives under the breast. Read our, Infections That Cause a Rash Under the Breast, Ringworm: Causes, Symptoms, and Treatment, Skin Conditions That Cause a Rash Under the Breast, Autoimmune Conditions That Cause Rash Under the Breast. MNT is the registered trade mark of Healthline Media. If youre breastfeeding, talk to your doctor about treating both you and your baby to make sure the infection's gone for good. It may appear in the dark areas around your nipples (areolas), between your breasts, under your breasts, on the sides of your breasts or elsewhere on your chest. Learn when itching is serious and how to treat it. If you are exposed to the sun, be sure to wear sunscreen with iron oxides and a SPF of 30-50 applied every two hours, as well as a wide-brimmed hat. [see Seborrhoeic keratosis pathology]. Inflammatory Breast Cancer. Your dermatologist or other healthcare provider will examine your skin to diagnose melasma. Avoid wool and silk. 2017;44(8):863-872. doi:10.1111/1346-8138.13806, Elston DM. adrenal gland disorders, such as Addison's disease. "Brown spots on the breasts are not usually associated with breast cancer," says Richard Reitherman, M.D., Ph.D., the medical director of breast imaging at MemorialCare Breast . And make sure youre getting the right treatment by confirming the diagnosis with your healthcare provider. You may have flu-like symptoms like fever, chills, and nausea. It causes a rash that often develops uncomfortable blisters and small cracks. Severe cases may require a topical steroid cream from a doctor. The descriptive term, benign keratosis, is . Flat to slightly raised patch or bump on the top layer of skin. To hear from us, please sign up below. There are some procedures that your dermatologist can do to improve your melasma. Heat rash (malaria) occurs when your sweat glands become blocked, so you cant sweat through the pores. Specific conditions can cause lesions that look similar to Kaposi sarcoma. Treating a rash under the breast Accessed 7/23/2020. You can even get it from your pets. It sometimes affects your arms, neck and back. Solar elastosis and elastic fiber fragmentation. This novel blood clot treatment doesn't increase bleeding risk, Why young women have more adverse outcomes after a heart attack than young men, Gut microbiome appears to fluctuate throughout the day and across seasons, One-hour endoscopic procedure could eliminate the need for insulin for type 2 diabetes, New clues to slow aging? This autoimmune condition mainly occurs in older adults and can appear anywhere on the skin, including the breasts. Our expert physicians and surgeons provide a full range of dermatologic, reconstructive and aesthetic treatments options at Cleveland Clinic. What medications and/or vitamins can I take to help heal my melasma? Barsh G. What Controls Variation in Skin Color? To treat dark spots or brown spots, one should have to know about the cause of this . A rapidly spreading rash or breast growth, life-disrupting pain or itchiness, swollen lymph nodes, or signs of infection like pus are your cues to visit a healthcare professional as soon as possible. The rash or itch may get worse before it gets better but should fade within four weeks, per the American Academy of Dermatology (AAD). They can occur on any part of your skin. Learn more here. Hidradenitis suppurativa: overview. We avoid using tertiary references. Its a type of fungal skin infection also known as tinea. A heat rash can pop up when the sweat ducts beneath your breasts are blocked, trapping in perspiration. American Academy of Dermatology. Apply a moisturizing cream or ointment immediately after drying your skin to help seal in the moisture. Zeng J, Luo S, Huang Y, Lu Q. Washing the affected area with cold water may also help. However, to keep your skin healthy in general, try a skin-healthy diet of foods rich in Vitamin D: Those with melasma are more likely to have a thyroid disease. However, the plaque stage exhibits the characteristic lesion appearance of Kaposi sarcoma more clearly, such as widespread blood vessel growth through the middle layer of skin, called the dermis. According to the American Cancer Society (ACS), the most . The rash may burn or itch. Try to determine what triggers or worsens your breast eczema, and then avoid it. Early detection of KS is critical to prevent the cancer spreading. In most cases, shingles will clear within 2 to 4 weeks. Autoimmune disorders are chronic and cant be cured, but you can manage the symptoms. 1. It usually clears up without treatment. The most common areas include: Between toes. Wool, silk and other fabrics can dry your skin. An irritated seborrhoeic keratosis is an inflamed, red and crusted lesion. It causes a red, raw-looking rash and can lead to yeast and bacterial infections. Melanin in the basal and suprabasal keratinocytes. Contact your doctor if the rash is keeping you up at night, is sudden, painful, severe, or widespread, or doesnt fade within three weeks. Apply hydrocortisone cream or ointment. In more severe cases, a doctor may recommend stronger topical corticosteroid products or antibiotics. However, treatments are very effective in reducing the symptoms of dry, itchy skin. Some mental/emotional signs of stress that can cause breast eczema include: Some physical signs of stress that can cause breast eczema include: Breast eczema isnt contagious. If you would like any further information and support or just want to talk things through, our nurses are ready to listen on our free Helpline. Birth control, specifically oral contraceptive pills that contain estrogen and progesterone. Pemphigus. Your skin may itch, change color, develop bumps, dry out or thicken. On light skin, eczema often appears as red or pink lesions. A dermatologist specializes in skin conditions. Typically, an over-the-counter or prescription antifungal cream will do the trick within two weeks. Hidradenitis suppurativa. This can occur under your breasts or in other areas such as your neck, between your buttocks, and in your armpits and groin. Rashes in in skin folds ( intertrigo ), such as under your breast, are generally caused by the following: viral or bacterial infections such as shingles (viral) or yeast (bacterial) skin friction . But they work best if you catch it within three days of the rash appearing, so don't delay. During the patch stage, Kaposi sarcoma lesions are flat and appear as skin discoloration or spots in various colors. While the exact timeline varies by cause, most rashes may take several days or weeks to completely heal. It's often called the "mask of pregnancy." Melasma happens because of overproduction of the cells that make the color of your skin.