If you have psoriasis of the scalp , it helps to wash your hair often. Moderate sunlight exposure of the scalp is often helpful. Do not get sunburned, since psoriasis may settle in areas of injured skin. Sunlight is an effective treatment for psoriasis, but sunlight causes aging of the skin and skin cancer, so don't overdo it. We have this treatment available in the office.
Psoriasis causes the skin to lose water to the environment.
So you must lubricate the areas of psoriasis with liberal amounts of Vaseline. Salicylic acid is used to dissolve the scales in psoriasis so that other medicines can penetrate the skin. Severe psoriasis can be treated with methotrexate . Use of the drug can cause liver damage, so patients on methotrexate must receive a liver biopsy every year. Mild psoriasis can be treated effectively with cortisone ointments .