I Am Highly Allergic To More Things Than I Can

I am highly allergic to more things than I can enumerate. Generally these allergies manifest with a long lasting rash. Yesterday, my doctor prescribed flunisolide inhaler for some breathing problems I am having. This morning, I woke up with a red bumpy rash on my face. My fear was that it might contain sulfa because that is one of medications I am allergic to. However when I looked up the ingredients, I did not find sulfa. Is there another of the ingredients that could produce this reaction? Thanks!