I don't have any ideas that don't cost lots of money, but thought I'd share my experiences, as Spencer has severe allergies. He is allergic to 7 different kinds of trees & grasses, plus he has a allergy to dust & dust mites that is off the charts. So, he is bothered year round. I never took him to an allergist, his regular vet drew blood & it was sent to some place in Colorado where they ran the tests & determined what he was allergic to. Pills were never enough to relieve his itching, so I give him allergy injections at home, every 5 days & they really do help. The last vial of serum I bought cost $125.00, but it is good for 66 shots. But of course that would vary, depending on how much serum goes into each shot. We've found that what works best for Spencer is a small amount of serum given frequently. He still occasionally needs medication at certain times of year when allergies are at their worst, but for the most part, the injections give him relief. Good luck, allergies can be a frustrating thing to get under control!