sounds like the antibugs will do their trick. It's amazing how quickly they go down with an infection. My last lab got an infection in her neck where a bit of stick went through the gum at the back of her throat. One day she was find, next day I honestly thought the old girl was on her out. Her infection turned out to be so deep seated that they needed to put her under anaesthetic to get at the infection to drain it, but thereafter she recovered with amazing speed.
All fingers and toes crossed for Krumble. Let us know how he is tomorrow
Luv Debs & Daisy