What you're describing are large local reactions (as opposed to body-wide systemic ones.) These reflect inflammation from what the bugs inject into the skin, not allergy. Local reactions may look dramatic, but they go away by themselves--I don't know of any treatment which speeds things up. Pollen and grass allergies are unrelated. For bug spray, you might want to try Avon's Skin So Soft products.
Best.
Dr. Rockoff