Plaque psoriasis is the most common type of psoriasis — a group of skin conditions that affect the skin and cause itchy rashes and pain. Plaque psoriasis causes raised red or purple patches covered ...

When it comes to sun protection, finding just the right formula can be tricky. If you have psoriasis, the search might seem even more challenging. A short window of exposure to sunlight may alleviate ...

Brendan Camp, MD, FAAD, is a double board-certified dermatologist. A dermatologist may use a physical exam and medical history to diagnose psoriasis. Skin biopsies help distinguish psoriasis from ...