What antihistamine works Best for you?

Hi!

I wonder which antihistamine is working best for you? I am currently on levoceterecin 2x2 and have daily hives and swellings…

In the past i tried allegra which seemed to work Even less…

Recently Started xolair and am Really looking for something to help with my CIU whilest Waiting for an effect.

Thanks so much for Everyone answering in Advance!