It does look like she may be getting infected. Send those/take those into the vet and see what they say. It looks like some swelling and 'gooiness' which is not good. Get a liquid antibiotic and put it into a lickable treat (in the treat section) I use Delectables Lickables in the stew flavors. In the meantime you could put a little human antibiotic salve on it, with NO pain killers in it, that is toxic, a small amount of licking does not hurt anything, it keeps it clean. It would not hurt her to lick it with a small amount applied two to three times a day.