After reviewing this thread I have a question which maybe fMichael will see (as a follow on to something he noted here) as it sounds like he has reviewed some literature on this topic. I have many allergies - to many things. I have had hayfever since I was young. I currently take Zyrtec (or generic / cetirizine HCl) daily. I used to take Zyrtec 2x/day when I was early in this CRPS condition. I have now had CRPS (systemic symptoms) about 11 months and I take Zyrtec 1x/day for allergies and to prevent subsequent congestion. Would Zyrtec be a CRPS concern similar to taking pseudofed? I have to take something for allergies and Zyrtec works well. I have noticed that for some reason my allergies have really subsided since having CRPS... Thank you for your input.
And of note, I always appreciate everyone's input on their research and experiences. My good thoughts and prayers for all of us suffering with this condition.