I usually battle poison ivy/oak rashes all summer. And have the occasional sniffle. But someone told me about taking zyrtec. I havent had but maybe a spot of a rash. And really no sniffling. I sound like a commercial. But I am now addicted. Poison ivy seems to be the flower of Eubank. It is growing everywhere. I have to pull it out of my flowerbeds about 2 or 3 times a year.