Psoriasis is an autoimmune disease whose main symptom is itchy, red, sore, flaky or scaly skin. Psoriasis occurs when new skin cells form too quickly, causing the body to increase blood flow and create a reddened, inflamed patch of skin with white, flaky dead skin cells on top. Called plaques, these outbreaks occur most frequently on the scalp, back, knees, elbows, feet or hands and cause mild discomfort.
Most psoriasis cases are plaque psoriasis, but there are a few other types. Pustular psoriasis causes pus-filled blisters on the skin, guttate psoriasis affects children, adolescents and young adults, and is often triggered by a bacterial infection and erythrodermic psoriasis causes large outbreaks of red, scaly skin all over the body. The good news is your dermatologist can effectively treat psoriasis.
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