NO!
the easy thing to do is to leave it and let the dog care for itself but if you are worried just wash it out with cool water and dry it gently if the dog will let you and just leave it to heal
my dog has razor burn what i do for her to help it heal quily
dogs heal your wounds
Yes. If the dog leves the wound(s) alone
The dog has a chance of surviving. but you should take it to the vet so that the vet can put something in his leg so that it can heal better.
You take the dog to the vet so they can heal him, and you report yourself as an animal abuser.
A dog fleas habitat is the dog itself.
If it looks like a small rash such as a dog chewing on themselves get the "hot spot" spray sold at stores. It has aloe and cortisone so the skin can heal itself and the dog wont irritate it further. If the skin is really red, hot to the touch, oozing pus or the dog has a warm dry nose. call a vet, your dog may need antibiotics.
A dog can be fixed at any age but it is best to have it done before the dog is four or five at the latest, because it will heal faster and not be as traumatic to the dog.
They fight.
If surgical stitches don't heal properly, you can have further problems at the site including hernias and eviscerations - you need to take your dog to a veterinarian for surgical repair of this.