My doctor gave me a steroid shot that she said was fast acting. It did seem to improve in just a few hrs however the next morning it was back worse than it was to begin with. She gave me prednisone to start today with 40mg 3 days 30 mg 3 days 20 mg for 3 days then 10mg for 3 days. Anyone else have the rash get worse and then get better when they continued on the prednisone?