Hydrogen peroxide is an antiseptic preparation that can be used on wounds with a lot of pus, infection, and contamination. Wounds with broken skin or mud can be cleaned and disinfected with hydrogen peroxide. When there is a break in the skin, use sterile saline to clean the wound, then use hydrogen peroxide to disinfect the area, then use saline to rinse the area repeatedly, and finally use iodine povine to disinfect the wound or bandage it with sterile gauze. If there is pus, ooze, or anaerobic bacteria in the wound, flushing the wound site with hydrogen peroxide can get a good inhibition of disease-causing microorganisms. After cleaning the wound with hydrogen peroxide, it is also necessary to use saline rinse, which can make the residual hydrogen peroxide diluted and excreted. Skin injury, it is recommended to pay attention to the care of the affected area, if necessary, to the hospital general surgery or outpatient clinic, ask the doctor to treat the affected area to avoid infection.