In fact I have tried all types of corticoid drug creams and oinments. My doctor prescribed a 21 tablet pack of medrol (methylprednisolone) but I am afraid to take it after what I have read. I'd like to know about the administration of the drug other than the six days suggested in the pack (my doctor didn't explain) and possible secondary effects in my case. I am a healthy mid-age woman with no major medical conditions other than the psoriasis with a very stressful job.