I've had problems every year with a few fawns getting abscesses on their cheeks and jaws. Sometimes they will finally rupture and drain but I've had to lance some myself and drain them.
Fusogard is a vaccination for foot rot. The bacteria that causes foot rot also causes abscesses commonly found on the cheeks, especially young fawns. Vaccinating the fawns with Fusogard may prevent the abscesses. I've heard from another deer breeder and two veterinarians that substantiate that claim. It's certainly worth a try if you're handling your fawns anyway. As always, ask your veterinarian for his advice.