Allergic Rhinitis
"I have severe seasonal allergies as well as severe allergies to dust and mold. I had gone through the gamut of second generation antihistamines (Claritin, Zyrtec and Allegra) with minimal success in treating my extreme symptoms. I decided to try the first generation antihistamine: Benadryl. Of course, it&#039;s been around for a long time, but it&#039;s definitely the most effective. The drawback to this older antihistamine is that it causes sleepiness, and it&#039;s not slight. Also, the newer antihistamines can be taken once a day, while Benadryl doses last only 4-6 hours. But to this extreme allergy sufferer, it&#039;s a small tradeoff, because it certainly treats the symptoms far better. "