A chronic skin disorder that causes skin cells to multiply up to 10 times faster than normal. This makes the skin build up into bumpy red patches covered with white scales. They can grow anywhere, but most appear on the scalp, elbows, knees, and lower back. 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.
Frequently Asked Questions
Common psoriasis triggers include Infections, such as strep throat or skin infections. Weather, especially cold, dry conditions. Injury to the skin, such as a cut or scrape, a bug bite, or a severe sunburn.
Psoriasis usually appears as red or pink plaques of raised, thick, scaly skin. However, it can also appear as small flat bumps or large thick plaques. It most commonly affects the skin on the elbows, knees, and scalp, though it can appear anywhere on the body.
A psoriasis flare may begin as a small patch that spreads, then gradually gets better. Most flare-ups are triggered by something. Scratching a psoriasis rash does not cause it to spread from one location to another. However, it may slow the healing process, creating the appearance that psoriasis is spreading.