
Hi lynilou
has your vet seen your dog at all and how long has this been going on for ?
It may not be just due to food - its a process of elimination really.
It can be things they come into contact with that cause the itching/licking
( household cleaners, shake 'n' vac etc) or insects ( housedust mites/flea allergies) or tree pollens etc. Quite a few different things.