When disinfecting wounds with hydrogen peroxide, the phenomenon of blistering does not necessarily mean that there is pus in the wound, hydrogen peroxide blistering is very normal, because the main component of hydrogen peroxide is hydrogen peroxide solution, the general medical disinfection of hydrogen peroxide is a concentration of 2% -3% hydrogen peroxide solution. Hydrogen peroxide is unstable in nature and may decompose when it encounters organic matter, or foreign matter in the wound, and the decomposition of hydrogen peroxide produces oxygen and water, which will result in blistering. There is no need to worry too much about this situation, and the water produced by the decomposition of hydrogen peroxide does not irritate the skin and will not have an effect on wound healing. Blistering phenomenon with saline rinse bubbles will disappear, and the use of hydrogen peroxide to disinfect the wound blistering, may be able to wash out the wound foreign body, which will help to remove the foreign body to prevent the wound from becoming infected, thus promoting wound healing.