When taking a shower, you can put medical waterproof tape on the wound and wrap a certain amount of plastic wrap around the outside to effectively stop the water. For larger postoperative incisions, try not to take a bath or swim, large areas of water exposure to a variety of waterproof measures are not foolproof, the prolonged application of cling film as well as waterproof tape will lead to wet and drug-free wound surgery area, which is not conducive to wound recovery. The above-mentioned methods are only applicable to smaller wounds or superficial wounds, and wounds must be regularly sterilized, cleaned and changed.