Accepted Answer

OK, thanks. It's possible that this lump is putting pressure on nerves or muscles in the area, and therefore contributing to the limping, but it's also possible that it's completely unrelated. Since arthritis is rather common in labradors as they age, it's not surprising that she may be starting to experience some of that -- but I think the smartest thing is to have your veterinarian perform an aspirate of the lump and also to examine the lame leg for any signs of problems such as a bone tumor, which can really have a devastating course even with early treatment. Bone tumors are relatively rare compared to arthritis, but it's still worth investigating in most cases.

As for over-the-counter pain relief, a lot of old-time vets recommend aspirin, but the problem with aspirin is that it can cause ulcers even after the first dose in dogs -- and it also may limit your veterinarian's choices for prescription meds, due to the risk of drug interactions. I don't routinely recommend aspirin for use in dogs.

The hot compress is a good thought, if it's nice and hot, and applied for 15-20 minutes, then it should provide some relief. Be sure it's not too hot, of course -- if it's too hot for your skin it will be too hot for hers.

Expert:	Drew
Pos. Feedback:	100.0 %
Accepts:
Answered:	8/11/2009

Veterinarian

Canine Medicine and Surgery