Dovonex is a topical medication used in the treatment of mild to moderately severe psoriasis. It works by lowering the rate at which skin cells grow. This reduces the red, scaly patches on the skin. Dovonex is for external use only. You should always use it exactly as your doctor has told you. The affected area should be clean and dry before application. You must wash your hands thoroughly before and after applying this medicine. This medicine should be used regularly to get the most benefit from it. Do not use more than you need as it will not clear...