Wound disinfection commonly used disinfectant solutions mainly include 75% medical alcohol, iodophor and medical hydrogen peroxide, violet solution (2% methyl violet solution), tincture of iodine (iodine), etc. It is necessary to choose the appropriate solution to achieve the effect of wound disinfection according to the different conditions of the wound. 1, 75% medical alcohol (ethanol disinfectant solution): generally not able to be applied directly to the wound disinfection, facial skin, eye and mucous membrane disinfection. Most of them are used to disinfect the skin around other wounds, because alcohol has certain irritation, if applied directly to wounds, painful situations will occur. 2. iodophor: iodophor is non-irritating, non-pigmentation, has a broad-spectrum bactericidal effect, mainly used for the disinfection of contaminated wounds, and can also be used for surface disinfection of mucosal wounds. However, some people are allergic to iodine, so you can use other disinfectant solutions for wound disinfection; 3, medical hydrogen peroxide: medical hydrogen peroxide has a disinfection and sterilization effect when the concentration of ≤ 3%, which can kill intestinal pathogenic bacteria and septic cocci. Most of them are used for cleaning and disinfection of traumatic wounds, and can also be used for superficial local wounds with certain infections; 4, purple potion (2% of methyl violet solution): purple potion belongs to a disinfection and antiseptic agent, which has the effect of disinfection, astringency and sterilization. It is usually used to treat purulent infections of the skin and mucous membranes, to speed up wound healing, and for stomatitis and burns caused by Candida albicans. 5. Tincture of iodine (iodine): it can play a role in killing bacteria, viruses and fungi. 2%-3% iodine is commonly used for disinfection of skin and wounds before surgery and injections, and is generally not used for disinfection of broken skin, eyes and oral mucosa. Use with caution in cases of iodine allergy. After disinfection with iodine tincture for 1 minute, 75% medical alcohol deiodination should be applied. In addition, there are 2%-3% boric acid solution, chlorhexidine and saline, etc., which also have the effect of sterilization and anti-inflammation. The less irritating iodophor and saline are commonly used to clean wounds. In addition, the wound should also avoid water, during the healing period, it is also advisable to light diet, increase the intake of protein and vitamins, which is conducive to speed up the wound healing.