Doctors use the skin lesion KOH exam to test a person’s skin for fungal infections, such as athlete’s foot or ringworm. During the test, they take a skin scraping and place it in a potassium hydroxide (KOH) solution. In this article, we look at the procedure, results, what the KOH exam tests for, and alternatives.
Peeling nails have a range of causes, including iron deficiency and certain underlying health conditions, such as underactive thyroid. Treatment options depend on the cause but include increasing the amount of iron in the diet. Learn more about how to treat peeling nails at home, and when to see a doctor.
There are many types of acne lesion. These blemishes range from mild blackheads and whiteheads to more severe forms, such as nodules and cysts. In this article, we explore what each of these types of lesion looks like. Also, learn which medical treatments and home remedies can help.
A pimple can occur almost anywhere on the body, including the neck. Causes of a neck pimple include poor hygiene, rubbing the area, and hormone fluctuations. There are many over-the-counter treatments, but some people may need prescription medications. Learn more about pimples on the neck and how to prevent them, here.
A first-degree burn is classified as a superficial burn because it only affects the first layer of the skin. First-degree burns can happen for a variety of reasons, including spilling hot liquids, touching something hot, and sunburn. Treatment involves reducing pain and swelling and keeping the area cool.
Stretch marks are common during periods of sudden growth. While they often fade over time, they can be permanent. Some people try to reduce the appearance of these marks at home using creams or lotions, herbal remedies, self-tanner, or hyaluronic acid. Here, we explore the evidence behind popular methods.
There are many different causes of a rash on the wrist, including eczema, allergic reactions to metals in jewelry, and other skin conditions. Here, you can try to identify your skin rash using the picture gallery and learn more about causes and treatments for a wrist rash here. We also explain when to see a doctor.
People with hypohidrosis sweat less than they should. This impairs the body’s ability to cool down and can cause heat-related illnesses such as heat stroke. Hypohidrosis is a less extreme form of anhidrosis, where a person is unable to sweat. Learn about hypohidrosis here, including its causes, symptoms, and treatment.
Burning the roof of the mouth is common. These burns are easy to treat at home and rarely cause for concern. Natural remedies can help, including yogurt, milk, aloe vera gel, and honey. Here, learn about seven natural home remedies for burns on the roof of the mouth. We also describe when to see a doctor.
Perioral dermatitis is a rash that affects the skin around the mouth. The cause is unknown, but research suggests that it is a reaction to the misuse of topical corticosteroids. Other triggers may include hormonal changes and allergic reactions. Learn more about perioral dermatitis and how to prevent and treat it here.