Fexofenadine
"I am suffering by a strong urticaria, i tooked  fexofenadine 180 mg i felt very good and the urticaria has 90% gone but after 1 week it returns idk why and i was still taking my pill so i started taking 1 pill morning and one at night and the urticaria is still here but all i'll never give up maybe i am going to use hydroxyzine now"