Allergies and Cropped Tail problems

Hi,

My poor guy has been sick lately. Are most JRT's prone to allergy problems? He has gotten hives, licks his paws raw, and scratches his nose with his paws often. He is now on one cortizone pill a day and benzadril 3-4 times a day. The poor guy is sleepy all the time. Plus he had to have his tail re-cropped because he was licking it raw. The vet said he may have "fathom pain" in his tail causing it. Just wondered how many other JRT owners have dealt with these type problems.

Any info would be appreciated!!

Thx,