Hi, PWocean and Welcome to HealingWell!
Your allergy case is definitely passed the norm here...I'm sorry you have had such a rough go of it!
I've personally never tried it, nor anyone in my family, so I do not have any first hand knowledge of this.
I have found a couple of links that describe this injection so yourself or others that are potentially interested in this particular med. can read the info.
Wishing you my best!!
Omalizumab is the generic name for Xolair