Overview Psoriasis is a chronic, recurring disease that causes one or more raised, red patches that have silvery scales and a distinct border between the patch and normal skin. A…
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Lichen Planus
Overview Lichen planus, a recurring itchy disease, starts as a rash of small, separate, red or purple bumps that then combine and become rough, scaly patches. The cause may be…
Alopecia Areata
Overview Alopecia areata is sudden loss of patches of hair when there is no obvious cause such as a skin or general internal disorder. (See also Overview of Hair Growth…