http://www.medications.com/effect/view/42613 I broke out in hives because of food poisoning. At Kaiser, they gave me an injection of Prednisone. They gave me 10 mg. of Prednisone to take 4 10 mg. for 3 days, then, 3 10 mg. pills for 3 days. Since it was making me sick, the nurse instructed me to ta