Tuffy is a foot chewer too, sometimes I think he does it for recreation, but sometimes it's allergies. He doesn't go outside very often but I guess it's just enough to bother him. I took him to the vet a couple of months ago and they said he has allergies and this is a bad time of the year for them. They gave me some medication for him and I only give it to him if he really seems to be sneezing or chewing a lot, which luckily, hasn't happened a lot lately. I hope the Benedryl works for Lexi.