Wet compress method: Pour the solution into a small bowl or other clean container in the right amount, put the sterile gauze folded into 6-8 layers into the solution and wet it, take it out and pinch the two corners of the gauze and wring it slightly without dripping water, put it on the skin lesion and wet compress it twice a day for half an hour each time. Because the wet gauze will evaporate, you can repeat the above operation again in 10 minutes interval in the middle of half an hour.