Hi, I had a systemic allergic reaction to an allergy injectio...

Hi, I had a systemic allergic reaction to an allergy injection. I was treated at the hospital with Benadryl and Prednisone. I was told to continue to take both, but still was having problems with sinus inflammation related to the reaction a day later. I saw my Dr. who told me to up the Prednisone and start taking Singulair. Well I started having side effects worse than the sinus inflammation I originally had within a few hours of taking the Singulair. I totally chalked them up to Prednisone side effects, since that drug has so many issues. But the side effects were different than those listed from Prednisone, and different from the last time I had to take Prednisone for an allergy attack. I had INTENSE head pressure (not just the sinuses, but everywhere), muscle tightness/pressure in my neck muscles and at the base of my skull. I don't know if this was a side effect or not, but I had freezing hands and feet, also VERY cold.. except my face was hot. I also got hot flushes occasionally in my body, like on the backs of my thighs. I also felt "out of it".. very dizzy and slow to respond. I was also very confused by why my sinus inflammation was not really responding to the Prednisone since it is such a strong anti-inflammatory. Well, I stopped taking the Singulair last night after reading this site, and I am feeling back to normal! Even my sinuses have unplugged. I suppose this could all be something besides the Singulair, but I am not chancing it again.