Medrol packs are great. They are a 5 day (usually) of steroids. Usually 4 or 5 mg tabs taken 5 the first day, 4 the 2nd and so on. The first time I took them I had never taken steroids before and by the end of the first day or start of the 2nd I felt so good I a bouquet of balloons to my GP! LOL (True story). It was the first time that I had been able to breathe in as long as I could remember. It cut back on so many of my symptoms that I actually felt like me for a couple of days. It was actually my response to the steroids that led to me referral to the rhuemy (my blood work came in a few days later). Short term steroids are OK. What you hope to not have happen is to have to take high doses for a long time. As wonderful as they were that first time is as much as I hate them now but that is a story for another time.