The topical drug of pityriasis rosea includes the following kinds: 1, solution class, because this disease can cause scratching, appearing blood scab or even broken situation, at this time can choose skin Kang wash, compound cypress liquid coating wet, play cool blood, detoxification, astringent treatment effect, also can cooperate with the application of 0.9% sodium chloride saline, boric acid solution wet, play anti-inflammatory, anti-allergic treatment purpose. 2, ointment class,. You can apply Longzhu ointment or dehumidification and antipruritic ointment to clear the fire, detoxify, cool the blood and stop itching. You can also choose glucocorticoid drugs, such as dextran ointment or fluticasone propionate ointment, to play the anti-inflammatory and anti-allergic therapeutic effect.