For wounds with good healing and no infection, it is generally not recommended to use iodophor for disinfection every day, and the frequency of dressing change and disinfection can be enhanced appropriately if wound infection is considered. For ordinary wounds, skin abrasions, skin lacerations after debridement and suturing, etc., in the case of wounds without exudation of blood and fluid, it is generally routine to disinfect with povidone-iodine every 3 days, change the treatment and cover it with a sterile dressing. For general wounds, daily disinfection with iodophor is not recommended. Povidone-iodine also has a certain degree of irritation, and frequent use of povidone-iodine to disinfect wounds is irritating to the wound and is not conducive to tissue repair and regeneration. Some patients may be allergic to povidone-iodine and cannot use povidone-iodine to disinfect, other disinfectant such as alcohol should be chosen. For wounds with pus, oozing, etc., the frequency of dressing change needs to be increased appropriately, and if necessary, povidone-iodine can be used daily for wound dressing change. The cycle of dressing change for wounds depends on the recovery of wounds, and it is recommended to consult a doctor in time and standardize the treatment under the guidance of a professional doctor.