Originally posted by dragondawg
Were one of those shots or pills Prednisone? Make sure a needle aspirate is taken and sent off to a Pathology lab for diagnostics. That is the only sure way to know what is really going on.
I'm not sure what they are, I'll have to find out from my mom. We haven't taken a needle aspirate or anything yet the vet was just seeing if this would effect it at all.

Good news: The lump on his neck is MUCH MUCH smaller...
Bad new: He's been peeing in the house, possibly caused by the medication.

He acts fine and is eating well.