I have horrible chronic allergies. The docs at Vandy's ASAP clinic put me onto something that seems to work better than OTC meds. It's a homeopathic thing called Airborne Seasonal Relief (yellow packaging). It's not the regular Airborne - it's made to bring your body's Histamine levels back to normal. It's kind of like Alka-Seltzer b/c it's a big tablet you dissolve in water and drink it.
Two weeks on that and I can go all out without worrying about the allergies. Works great but a little hard to find. I get it at Walgreens.