Depending on the severity of the patient’s wound, the method of iodine povidic disinfection will be different, as follows: 1, if the patient’s wound belongs to a minor abrasion, the patient’s injury is relatively light, the use of iodine povidic disinfection, generally centered on the wound, you can properly disinfect the wound 2-3 times, you can achieve the effect of a better removal of bacteria in the wound. After disinfection, sterile gauze or bandage can be used, and disinfection can be carried out once in 2-3 days. 2. If the patient’s wound granulation is relatively fresh, it is not recommended to use iodophor to disinfect the granulation directly, and the skin around the granulation can be disinfected with iodophor, while the fresh granulation should be cleaned with physiological saline, so as not to cause delayed healing due to the over-stimulation of the granulation by the iodophor; 3. If the patient’s wound is accompanied by more pus, it is usually necessary to disinfect the wound with 2-3 times. If the patient’s wound is accompanied by more purulent secretion, iodophor cotton ball can be used to repeatedly clean the local inflammatory exudate, and at the same time, hydrogen peroxide, vitality iodine and saline can be used for repeated cleaning, to achieve the effect of thorough disinfection.