USES: This medication is used to treat psoriasis. It helps to reduce the redness, thickening, and scaling of the skin that occurs with this condition. Healthy skin lowers your risk for infection and protects you against the environment. This product contains 2 drugs. Betamethasone is a very strong corticosteroid drug that works by decreasing swelling, redness, and itching. Calcipotriene is a form of vitamin D. It is also known as calcipotriol in other countries. It works by slowing down the growth of skin cells so that they don't build up into thickened, scaly skin patches.This product should not be used if you have certain types of psoriasis (skin patches with pus-filled blisters, psoriasis over most of your body with intense redness/shedding/oozing).