Your dog most likely has experienced an abscessed anal gland that has ruptured and is possibly draining. The other possibility would be perianal gland adenomas that have become infected and are draining.
Either way, you
before and after playing with a pet, not letting a pet lick people around the face, and not washing pet food or water bowls... me) have been licked by their dogs seemingly without incidence, but bear in mind that babies have immature immune...
that it doesn't further add to the irritation.
A collar will stop her from licking... with an Elizabethan collar. These can help to keep a dog from licking or chewing at just about any spot on their body...
These circular, pink sores could be the result of flea bites. They could also be a form of ringworm--a skin fungus in the dog. If they haven't disappeared or at least gotten somewhat smaller in a few days, you should have