Question: what is the most powerful over the counter allergy medicine?
Answer: Allegra Adult 24-Hour Allergy Relief at Amazon. ... , Children's Zyrtec Allergy Relief Syrup at Walmart. ... , Claritin 24-Hour Allergy Reditabs at Amazon. ... , Xyzal Allergy Relief Tablets at Walmart. ... , Zyrtec Prescription-Strength Allergy at Amazon. ... , Benadryl Ultratabs Antihistamine at Amazon.