Hydrogen peroxide is generically known as hydrogen peroxide solution. The drug is prohibited for oral use and for prolonged gargling, enemas, or wound irrigation. Hydrogen peroxide solution is a topical drug, it is forbidden to take it orally. The drug has the ability to remove pus clots, blood clots and necrotic tissue, and to fight infection. The drug is used to disinfect and clear purulent otitis externa, otitis media, stomatitis, gums, wounds and other diseases. When using the drug, it is necessary to pay attention to the prohibition of high concentration of the drug, for the disinfection of the external auditory canal and other parts of the body, need to use the drug under the guidance of clinicians, and prohibit unauthorized use of the drug. For local disinfection, it is necessary to carry out thorough cleaning after cleaning, and it is forbidden to use the drug for a long time, so as not to cause local skin mucous membrane irritation burns. Hydrogen peroxide needs to be used under the guidance of clinicians.