It definately could be a reaction to a shot. Has he had shots recently? Hootie used to get a lump after everytime she got a shot. Just watch it and if it gets bigger or doesn't go away, then you'll definately need to see a vet as it could be some type of infection. My sister's yorkie got a Staph infection from a needle when she got shots one time. She had to get the site drained and then be put on antibiotics. But, if it gets smaller and goes away after about a week, then you're good to go. |