Does anyone use the Airborne products that are supposed to strengthen you immune system during cold season? My friend and her co-workers swear by them. I just wanted to see what other people think. Everyone here is suffering with such bad seasonal allergies. My daughter has been to the doctors 3 times in three weeks.....it is horrible. Everyone in the neighborhood says the same thing, the cough and sinus congestion and drip that will not go away.