GSD keeps getting abscess infections on his face
My GSD has a repeating issue with having bad infections under the fur of his head/snout that turn into nasty abscesses. His face is swollen again and I'm 100% it's another abscess. This is the 3rd time this has happened. The first time the skin above the abscess died and needed surgery to remove. Both times he's been on Clava-Septin and it has proven ineffective at completely removing the bacteria.
Should I try a new medication? I'm at a loss as far as what to do, but this problem won't go away. Any input would be appreciated.