How many times a day to use povidone-iodine needs to be judged according to the patient’s specific situation, most patients can use it 3-5 times a day. Povidone-iodine is a commonly used antiseptic drug with anti-inflammatory and antiseptic effects, which can be applied to the wound and the surrounding area with a cotton swab. Povidone iodine is low in concentration and will not cause adverse reactions. It should be noted that povidone iodine is not easy to clean and should be avoided from dripping onto clothing. For wounds that are more susceptible to infection, povidone iodine can be applied with a little pressure to remove bacteria and loose scabs around the wound, and the patient’s wound can be dressed after povidone iodine disinfection, while a lower concentration of povidone iodine is used to disinfect tools prior to surgery.