Psoriasis has always been a common disease. Historically, its causes were obscure and surrounded by stigma; it wasn't until recently that scientists categorized it as an autoimmune condition. Indeed, ...

For most people, psoriasis causes red, itchy, and scaly patches on the skin. But for some, the tight, dry, and inflamed lesions can also cause pain in the skin. One study found that pain was ...

Dr. Carolyn Jacob, medical director of Chicago Cosmetic Surgery and Dermatology and a member of the American Academy of Dermatology (AAD), was diagnosed with psoriasis 36 years ago. “It’s what got me ...

How do you deal with side effects from your treatments for psoriatic arthritis (PsA) or psoriasis? Medications or natural treatments for your joint pain and swelling or skin plaques may cause side ...

For decades, people with psoriasis have been treated in clinics with narrowband ultraviolet B phototherapy, or light therapy, to reduce sores, scales, and inflammation. Now, new research from the ...

Sores on the penis may result from a sexually transmitted infection (STI), such as herpes, or a skin condition like psoriasis. Diabetic ulcers and cancerous tumors can also affect the penis. While ...

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 ...

Here’s why psoriasis commonly affects the knees and elbows, what it looks like, and how you can treat the condition. Plaque psoriasis is the most common type of the psoriasis in general, affecting ...