Psoriasis is a common skin condition that changes the life cycle of skin cells. Psoriasis causes cells to build up rapidly on the surface of the skin. The extra skin cells form thick, silvery scales and itchy, dry, red patches that are sometimes painful.

Psoriasis is a persistent, long-lasting (chronic) disease. There may be times when your psoriasis symptoms get better alternating with times your psoriasis worsens.

Psoriasis signs and symptoms can vary from person to person but may include one or more of the following: Red patches of skin covered with silvery scales, Small scaling spots (commonly seen in children), Dry, cracked skin that may bleed, Itching, burning or soreness, Thickened, pitted or ridged nails, Swollen and stiff joints.

The primary goal of treatment is to stop the skin cells from growing so quickly. While there isn't a cure, psoriasis treatments may offer significant relief. Lifestyle measures, such as using a non-prescription cortisone cream and exposing your skin to small amounts of natural sunlight, also may improve your psoriasis symptoms.