Usually, medical alcohol cannot be used to wipe wounds. If wounds need to be disinfected, options such as iodophor, hydrogen peroxide plus saline are available. Medical alcohol is mainly used to disinfect the surface of objects, and in some cases, it can also be used to disinfect unbroken skin and mucous membranes. It is not recommended to be used to disinfect wounds because of the irritating effect of alcohol on broken tissues. Only in critical situations, such as in the field, where there is no alternative disinfectant, medical alcohol can be used cautiously for disinfection. For the disinfection of wounds, iodophor is commonly used clinically for disinfection, and for wounds with contamination, hydrogen peroxide can be used for rinsing and disinfection, but after the use of hydrogen peroxide, it is necessary to use saline to clean the hydrogen peroxide and wipe the iodophor at the end. When skin wounds occur, it is recommended to go to the hospital in time.