Hello everyone. My GSD Ruger is 11 months old, and in good health. He's been boarding for the past 2 months, getting lots of love, socialization and training while I was coping with an illness. Its a pretty controlled environment. Saturday he suddenly developed a swelling on left side of his neck, which appeared to be an abscess of mandibular gland. No other symptoms Saturday. Sunday lump a little bigger and more firm. A little lethargic and off feed. Temp was up to 103.8 but came down w/Rimadyl and some ice packs to 101.6. Started oral cephalexin that afternoon and temp stayed down, appetite back. Picked him up Monday and took him in to the vet, b/c he was a little off food still and slightly lethargic, but had been active and playful before breakfast. ate 2/3 of am meal. Temp on arrival was 106.3. No indication of oral trauma or tooth issues. Aspirate was WBCs, lots of neutrophils. Lab work indicative of bacterial infection. I left him there for IVFluids and IV ABX. Temp was down to 103 at end of day, appetite ok, not great. Labs were essentially normal, except 0.1 below normal protein, and incr WBC. Looked bacterial. Today lump decreased in size, appetite ok, but temp was 103.8 this am. He removed his catheter overnight so didn't get the full amount of fluids but had gotten 2 doses of IV ABX. We're all puzzled why temp still up while routine labs are so close to normal. Any ideas or experience?