Q. Back paw is swollen and he is limping on 3 legs. It looks like it might be infected, what can I do
JESSICA L DESROSIERS
A. Swelling and limping are signs of an injury to the limb, and signs of infection in addition include swelling that is hot or painful to the touch, or may be oozing greenish or yellow dirty debris. If your dog is actively limping and has signs of infection, he will need to be treated by a veterinarian ASAP. The infection will usually have to be drained and need antibiotics to have it resolved. If there is additional injury to the limb such as a break or sprain, additional tests such as an X-ray may also be needed.
It is best to seek veterinary care ASAP. In the mean time, keep your dog on strict bed rest, do not allow him to lick at the wound, and keep the wound clean of any debris or oozing by using a warm, clean and wet washcloth to remove it.