For three years I have been fighting allergies relentlessly – especially post-nasal drip. My arsenal was usually Benadryl or most recently Zyrtec, both of which made me extremely drowsy and did very little to mitigate the allergy symptoms. I tried Zicam Allergy Relief about three months ago and cannot believe how fast it works and with no side effects. The post-nasal drip is no match for Zicam. As soon as I feel the symptoms, I use the swab and the drip is gone. Thank you, Zicam.