Homer tore off a claw a few weeks ago. The claw is no longer painful and healed, just needs to grow out now but Homer has been licking it almost constantly recently. There’s no sign of redness or infection. We’ve been cleaning it and putting a sock over his paw to prevent him from licking all the time. We change the sock daily and he doesn’t have it on during walks. The sock gets quite smelly. Hubby suggested that dogs sweat through their paws and it’s just a sweaty dog smell. Or is there something more sinister?