It is not necessary to wash it after application, because it is made of water-insoluble powder drug mixed with solution, shaken well and applied to the skin, the solution will evaporate quickly, leaving the powder on the skin surface, which can effectively relieve edema, protect the local skin, and prevent skin inflammation to a certain extent. In addition, after the external application to the skin will form a protective film, forming a more lasting local protection, wash off instead of losing the effect of the drug, you can wait for its gradual removal. The main components of Furfuranate are Furfuranate and Zinc Oxide, which have the effects of heat dissipation, antipruritic, astringent and anti-inflammatory, and also have a weak antiseptic effect. It is mostly used clinically to treat dermatitis, eczema, prickly heat and other skin diseases. It is applied daily in divided doses as directed by the doctor and can be reapplied after rubbing for a period of time in order to achieve a better maintenance effect. Because of the irritating effect of hearthglass, it is best not to use it when the skin is oozing and decaying, so as not to affect the recovery. Avoid the eyes, nose and mouth when using it. People with allergies should use it with caution. If redness, swelling or burning sensation occurs after using the medicine, stop using the medicine immediately to avoid damaging the skin.