Question: what is the best over the counter allergy medicine for cats?
Answer: Avoiding the allergen is best, but when that's not possible, the following treatments may help: antihistamines, such as diphenhydramine (Benadryl), loratadine (Claritin) or cetirizine (Zyrtec) corticosteroid nasal sprays such as fluticasone (Flonase) or mometasone (Nasonex) over-the-counter decongestant sprays.