Accepted Answer

It sounds like it is getting infected. I would recommend one of 2 things at this point. If you a coned shaped Elizabethan collar for him, you can put that on to keep him from licking. If you don't have that, you can try putting a sock over the paw, but my guess is that a puppy would most likely try and take that off. If is work a shot, though. If you have some Epson salts, you can soak the paw for 5-10 minutes. That may help. The initial injury may have just been a mild abrasion that got worse from him licking it. Some dogs will lick out of boredom or anxiety and cause the infection. I forgot to mention it, but with a puppy, demodectic mange is very likely. Either way, have your vet take a look at it tomorrow. I have used 1mg per pound of body weight of Benedryl to help with inflammation and hopefully make them sleep, so they don't lick anymore. Hope this helps.

Expert:	Texas Veterinarian
Pos. Feedback:	99.6 %
Accepts:
Answered:	11/5/2009

Dog Veterinarian

7 years of clinical veterinary medicine and 17 years experience caring for household pets.