Jack will be 5yrs old in September. When he was younger he always had a problem with a couple of the pads on one paw cracking open and becoming inflamed and infected. This would clear up, and it would start on another paw. Then everything would clear up for a couple of months, and the cycle would start all over again. The vets were stumped over this, so I never knew what the problem was. It hasnt happened in over a year now so I'm hoping he has out-grown what ever it was! Has anyone ever heard of this happening before? Just wondering.