I also had this problem...not with my yorkie but with my westie. He would chew/bite/scratch himself raw! I took him and had allergy testing done and he was allergic to numerous things!!! Since your baby started in October I am thinking dust or something in the house that gets stirred up with the heat going and the house all closed up. My westie is allergic to dust/mold/pine needles/some types of grass and believe it or not human dander! He is also allergic to ALL grains so I have to feed him grain-free food. I feed him AND my yorkie Evo grain-free small bites and they both do great on that. Been using it now for about 3 years. I also had to give him allergy shots for about a year. He also has done better since we removed all the carpet and replaced with wood floors. (If you have carpet he could be allergic to all kinds of stuff in there.) Dont know if this helps but sometimes you just have to use the process of elimination I think. It takes a looong time tho. Oh and before i forget ...do you use air fresheners or carpet powder? Thats sometimes the culprit too. Good luck with your baby...hope he gets better soon!
