Called allergy?

Hello! Wondering if anyone else on BCO has had an allergic reaction to Faslodex?

i started Faslodex injections in August. The first was painful, but otherwise fine. After my second injection, I developed a rash at the injection site (both cheeks), about 2 days after the injection. I discussed with my oncologist, and she recommended taking Claritin for 5 days before and 5 days after my third injection, which was on 9/13.

I am currently on vacation in Europe, and yesterday, I woke up with a small rash on my torso. By this morning, it had spread to my entire torso and inner thighs. I was seen at the Emergency department today (which was quite an adventure!), and they believe it is a reaction to the Faslodex. They recommended i continue with the claritin, and increase the size of prednisone i am taking, until the rash subsides.

I am just wondering if this has happened to others, and what was the eventual outcome? Did you have to change treatments? I am terrified!!! I was only recently diagnosed (July 2018) with de novo stage 4 mixed IDC/ILC, and aside from the radiation for my brain met, this is the first therapy i have tried. I would hate to have to abandon it so soon! I don't want to run out of options!