Psoriasis is a chronic skin disease in which the immune system becomes overactive, causing skin cells to multiply at an abnormally rapid rate. It causes scaly, red, and inflamed patches on the skin. Psoriasis usually affects the hands, neck, feet, scalp, and face. In severe cases, it may also affect the nails, mouth, and areas around the genitals.   In this blog, Dr. Rasya Dixit, the...