Wounds if coated with hydrogen peroxide bubbling, these bubbles must wait for its complete stability must be wiped off, because hydrogen peroxide and the wound inside the exudate, secretions and blood will produce a chemical reaction, which will eventually produce oxygen. And pure oxygen can have a disinfecting effect on the wound, other chemical reaction after the liquid or other substances, in fact, there is no disinfection effect, so it must be wiped off. Generally, after the oxygen is completely produced and the bubble is completely still, you can use a clean cotton swab to wipe off the residual liquid, use gauze to give off or rinse off with sterile saline, and then do the disinfection of other disinfectant solutions.