Chlorhexidine acetate disinfects the skin for 1 minute and sterilizes the skin, even if it takes longer. Sterilization refers to the elimination of bacterial spores of a disinfection method, bacterial spores are a kind of extremely resistant bacterial propagation body, if the degree of sterilization is reached, the human hand is basically unable to exist, so the disinfection of the skin is not required to achieve the degree of sterilization. Chlorhexidine acetate is a highly efficient, fast skin disinfectant, can be used for preoperative soaking hands and injection site skin disinfection, 0.3% chlorhexidine acetate disinfection qualification rate of 100%, clinically recommended that the injection site skin disinfection using the concentration, at the same time in the pre-surgery, the doctor soaking hands with 0.15% chlorhexidine acetate soaking hands as long as more than 1min can be. If there is discomfort to go to the hospital in a timely manner, do not use high concentrations of disinfectants, so as not to cause skin damage, ulceration, adverse consequences.