Greetings from one Tennesseean to another!
When Sully was about 5lbs, we started noticing his allergies and took him into the vet. Our vet said 1/2 a child's dose, 3x a day for 2 days and see if that helped, which it did.
(This was over Christmas of this past year....and if we hadn't gotten rid of his allergies he would have committed suicide ala scooting of his butt on my grandmother's carpet. LOL)