My 5 yr old pug has a severe allergy to dust and gr. What options are there treat her?

First you want to eliminate all wheat from her diet. Wheat products just make allergies worse... even in humans. There are many high quality foods that you can switch her too. Try to find one with oatmeal (non-allergenic) over rice. but brown rice is acceptable too. All avoid products with corn and corn products (i.e. corn starch). You want to keep her diet as simple as possible. Start putting her on vitamin c. Ester-c is best. I highly recommend Dr. Goodpet's Ester-C. I use it on my dogs as well. START LOW. Very low and work your way up to no more than 1000mg a day depending on her weight. It should take several WEEKS to work up to 1000 mgs. Too much vitamin C will give her diarrhea. Also, get her onto a good fish oil pill or some high quality salmon oil. Look in your area for a good holistic vet. There are a lot of ways to control allergies without drugs. Good luck.