Erythromycin can be applied, but if the incision is deep and it is difficult to stay for a long time, you may need to go to the hospital for stitches! It's very difficult if the wound festers. Try to take her to a regular pet hospital. If not, apply some anti-inflammatory drugs such as erythromycin. If there are signs of inflammation, take oral anti-inflammatory drugs. Don't let him buckle the wound when it grows. The wound is every day (note that it is every day! ! ) Clean him up with a cotton swab dipped in alcohol or normal saline! ! This is very important! ! ! Be sure to wipe it every day and keep the wound clean, so that you can live longer!