question: Im on prednisone for a rash , Ive also been on anti biotics (z pACK) I itch all over and have swollen lymph nodes..on my neck, i get achy and seem to get cold much more then I ever have.I was on prednisone and a week later the rasChatDoctore back and I was very itchy..went back and was put back on prednisone again. should I be worried