But there’s one side effect that’s well established but little known and still puzzling to doctors: the “keto rash” or prurigo pigmentosa. This rash fits the man’s case perfectly—red, raised, itchy ...

This autoimmune disease may impact your skin as well as your nails and hair. Learn what to look for to treat lupus more effectively.

Medically reviewed by Susan Bard, MD A rash under the breast often results from heat, moisture, eczema, allergies, fungal ...

You notice a rash appearing on your skin and your first instinct is probably to blame it on new laundry detergent, stress, or maybe something you ate. Most of the time, you’d be right – rashes are ...

Swimmer’s itch is a rash caused by an allergic reaction to the larvae of microscopic parasites that are found in both fresh and saltwater. These parasites commonly live in snails, which secrete larvae ...

A malar rash, or butterfly rash, typically appears across the cheeks and bridge of the nose in a butterfly shape. Lupus and rosacea are two conditions that can cause a malar rash. A malar rash can be ...

Itchy skin rashes are unsightly and uncomfortable, but you don’t need to put up with them forever. To help you find quick relief, start with this list of the best creams for itchy skin rash. Atopic ...

Discovering a rash around your child’s mouth can trigger immediate concern for many parents. Though these unsettling red patches are frequently attributed to food allergies, the reality is much more ...

Amber breaks out in hives if the temperature goes below 12C (53F) and wishes for a "normal life".

For most, summertime shine is a welcome change after a cold winter, but the summer heat comes with its own dangers. Heat rash is something that adults, children and infants can experience when sweat ...

In more severe cases, large areas of the body can be affected, especially after swimming in cold water or spending a long time outdoors. This leads to uncontrollable itchiness, as well as facial ...