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Psoriasis Health Center


Psoriasis is a chronic skin condition caused by an overactive immune system. Symptoms include flaking, inflammation, and thick, white, silvery, or red patches of skin. Psoriasis treatments include steroid creams, occlusion, light therapy and oral medications, such as biologics.

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Traveling with psoriasis? WebMD has the keys to help you -- and your skin have a smooth trip.

Understanding Psoriasis -- the Basics

What Is Psoriasis?

Unpredictable and irritating, psoriasis is one of the most baffling and persistent of skin disorders. It's characterized by skin cells that multiply up to 10 times faster than normal. As underlying cells reach the skin's surface and die, their sheer volume causes raised, red plaques covered with white scales. Psoriasis typically occurs on the knees, elbows, and scalp, and it can also affect the torso, palms, and soles of the feet.

The symptoms of psoriasis vary depending on the type you have. Some common symptoms for plaque psoriasis -- the most common variety of the condition -- include:

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