Medically reviewed by Susan Bard, MD Fungal acne is caused by an overgrowth of Malassezia yeast on your skin.You can use ...

It can be distressing to wake up with a mysterious swollen red rash on your ankle. Could that rash be an insect bite? And what kind of bug bit you? The answers aren't so easy to figure out. Even for ...

Q: For almost two months now, I've had bumps on the back, sides and crown of my head. They itch all the time — and even more ...

Prurigo nodularis is an extremely itchy skin condition. It causes a rash that often includes hard lumps called nodules. You might also hear it called nodular prurigo. Doctors don’t know exactly what ...

What Causes a Rash in Your Armpit? An armpit rash is more common than you might think. Your armpits probably come into contact with more chemicals each day than most other parts of your body. Don’t be ...

A 62-year-old Black man with a history of atopic dermatitis presents to the clinic with persistent itchy bumps on his arms, legs, and back. The patient reports that the bumps have been present for ...

Casey Gallagher, MD, is a dermatologist and clinical professor in the Department of Dermatology at the University of Colorado Denver. Atopic dermatitis, the most common form of eczema, can lead to dry ...