A : According to the form of plaster, it is divided into plaster and ointment. A cream made of drugs, coated in cloth (nonwoven cloth, cotton cloth, etc.), is called ointment plaster; the drug is made into a paste and is filled in plastic, metal or other closed containers. The product is called ointment when used directly on the skin of the body. According to the ingredients of plaster, we divide the traditional Chinese medicine plaster and Western medicine plaster.