Is the leg swollen at a joint or along a bone somewhere? And have you tried resting the leg (curtailing his exercise...yeah, I know... 9-month-old choco-lab: irrepressible.
) What kind of antibiotics was he on?
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."