Medical hydrogen peroxide, commonly known as hydrogen peroxide, is divided into three types: medical, military and industrial. Daily disinfection is medical hydrogen peroxide, medical hydrogen peroxide can kill intestinal pathogenic bacteria, purulent cocci, generally used for object surface disinfection. When it meets with wounds, pus or dirt on the skin, mouth and mucous membranes, it immediately decomposes to produce oxygen. When wounds and incisions may be unclear due to the nature of the infecting strain, hydrogen peroxide can be combined with disinfectants such as iodophor and alcohol, which will increase the therapeutic effect. Hydrogen peroxide must be rinsed with saline after use to avoid chemical reactions with other disinfectants that may affect the therapeutic effect. For traumatic wounds, it is possible to use hydrogen peroxide to clean and disinfect. And in daily life, you need to pay attention to keep the wound area clean, hygienic and dry, and avoid all factors that cause infection, so as not to cause infection and aggravate the condition.