I recently was in the hospital with a very bad rash and edema in my arms that caused bad bruising. At first they thought it was a systemic allergic reaction, but the rash went on my palms and they decided I had some sort of virus. the rash looked like hives at times. sometimes it would be red dots and other times it would spread into large red patches. i was on prednisone for about two and a half weeks and came off it last week. ive been taking benadryll 25mg and zyrtec 10mg regularly, and the rash had all disappeared except that my cheeks and palms still get flushed when im nervous, cold or take a hot shower. tonight, my legs were itchy and i noticed small, itchy red bumps on my legs and arms that look nothing like my previous rash and i am very worried about this new rash. it has been a month now and i just want it all to go away. any help would be much appreciated!