The ultraviolet (UV) light in sunlight can slow the growth of skin cells, so small doses of sun can be a good way to soothe, improve, and even heal psoriasis lesions. Even indoor light can make a difference.
Try to get some sun two or three times a week, and use sunscreen on your healthy skin. Too much sun (or sunburn) raises your risk of skin cancer and may make your outbreaks worse.
Talk to your doctor before adding UV therapy to your routine -- and schedule regular skin checkups to be sure you’re not overdoing it.