Had an allergic reaction to amoxicilan which caused my whole body to break out in terrible itchy red bumps. Went to the doctor and he prescribd methylprednison. 21 tablets to be taken 6 on the first day, 5 on the second and so forth. Im currenty on day 3 and the majority of the rash has gone away but minor rashes are poppling up on my body on the arms...stomach...groin...but not all at once. It stays for bout 20 minutes and will go away only to pop up somewhere else. Its nothing severe but is this common after starting methylprednison? How long will it take tocompetely get rid of the pop up rashes?