I don't want to be an alarmist - but a good friend here in houston had a yorkie with a little foot that ended up looking like hamburger due to her licking and chewing on it - they had been to the vet NUMEROUS times and finally got a skin scraping done - it was MITES - under the skin mites.
With a ton of treatment and months of vet visits - they finally got her foot back to normal - ASK your vet to check for them - they're not common but VERY hard to treat and from what I just saw - hard to diagnose
ps. this person has 2 yorkies - and only the one was affected |