
Psoriasis – Types and Symptoms
Psoriasis is a common chronic skin disease that causes rashes. These rashes tend to be itchy and scaly and are most frequently seen on the knees, elbows, trunk, and scalp. This condition usually arises in cycles or flares, which can last for a few weeks or months before subsiding. While the exact underlying cause of psoriasis remains unknown, most experts believe that this condition results from a problem in the immune system.