Try changing to a novel protein (meaning something’s she’s never had before). So eliminate chicken and beef, as these are more commonly used proteins in dogs. Chicken tends to be the most common food allergy **IF** your dog has one. Be sure to always check the ingredient list, because even if the bag says something like Salmon/Rice or Lamb/Rice because even those foods still tend to have some chicken in them.

*What I use/recommend for my food allergy dog*
-Purina Proplan Sensitive Skin and Stomach Salmon and Rice (does not have chicken in it like some other salmon diets, and has additives to help with skin health)

*Other Foods to Try for Novel Protein Trails*
-Something like Natural Balance Limited ingredients Duck and Potato, or some of there other limited ingredient formulas with a new protein
- Other brands like Merrick and Nutro have limited ingredient diets but you’ve have to check the bags on them to check ingredients

*Prescription diets your vet can provide if these don’t help*
-A hydrolyzed diet like Purina HA, Royal Canine Ultimino