After my dog's hind leg bone was bandaged, the skin inside began to fester. What should I do about disinfection?

Disinfect with iodine, then apply Yunnan Baiyao to the ulcerated area twice in the morning and evening, and keep dry. Wipe off the pus with a cotton swab. If it is not necessary to fix it with a bandage, you can remove the bandage and put it in cotton clothes. Don't let him scratch wounds, such as used underwear. As for who it is, it depends on the size of the dog, and it is not easy to be infected repeatedly.