Ma Ying Long Musk Hemorrhoid Cream may cause constipation after use, which is an adverse reaction of the drug. Ma Yinglong Musk Hemorrhoid Cream has the functions of removing putrefaction and regenerating muscle (promoting the shedding of putrefied flesh and the growth of new flesh), clearing away heat and drying dampness (removing heat and drying out dampness), invigorating blood circulation and subduing swellings, and it is a kind of externally-applied proprietary Chinese medicine, which can be used for anal fissure, hemorrhoids, and perianal eczema, and other diseases. Some adverse reactions may occur after using the medicine, including constipation, dry skin, difficulty in urination, etc. Generally, it does not need special treatment and can recover by itself after stopping the medicine. If the adverse reactions are serious, the drug should be stopped immediately and seek medical attention. Allergic to the product is prohibited; allergic persons should be cautious; athletes should be cautious; pregnant women, lactating women, the elderly and infirm should be used under the guidance of a doctor. During the use of medication should follow the doctor’s instructions, on time and according to the dosage; and symptomatic application of drugs, avoid private abuse of drugs, so as not to delay the treatment of the condition.