Benadryl Allergy and Sinus Headache is my favorite allergy medicine. Usually within 20 minutes it takes affect and helps stop sinus drainage. It also knocks out my headaches quickly. I suffer from migraine headaches and taking this medication has many times helped aide in stopping those before they get to that point. It has never made me sick, only a bit sleepy at times but that is even better if you want to get a good nights sleep. My husband generally doesn't take any medication but this is one even he will take. I have a payflex prepaid card through my health insurance and this item is even...review »