My dog just got hurt, and he has a lump on the right side of his neck and it keeps swelling and going down.What is it?
Good grief! Who knows! Get it to a vet .. it could be something serious...you can't help him unless you get him some medical attention.
Only a Vet can say, this is not the kind of question to ask here it could be a real emergency. Please get it to the Vet asap.
Go ask a vet. It could be serious