My little Sophie has had a terrible time with scratching. We checked for ear mites, no. Then ear infection, no. Then blood work for allergies, check. She is allergic to oats, turkey, venison, oak, and cedar. I've put her on gluten free food and treats that don't contain turkey or venison. She is still scratching. I don't know what to do. Could it be from being cold? I've been keeping shirts on her so she doesn't hurt herself.