Give your child effective relief from common allergy symptoms with Children's Benadryl Allergy Liquid. Containing 12.5 milligrams of the antihistamine diphenhydramine HCI per teaspoon (5 mL), this kids' liquid allergy medication relieves symptoms due to upper respiratory allergies, including runny nose, sneezing, itchy nose, itchy throat, and itchy, watery eyes. Available in a kid-friendly cherry flavor, this children's allergy relief syrup is alcohol-free and is intended for ages 6 to 11. Help alleviate your child's indoor and outdoor allergy symptoms with the brand moms turn to first when they first treat their children's upper respiratory allergies.