Oops, Laura "Needhelp16" chimed in while I was typing ... thanks for your input!
I'm not entirely understanding what you're asking, but I'll give it a stab since no one else has chimed in ...
My experiences with solumedrol, also three days (on each of two separate relapses), were both very positive. The most intense effects were gone by the time I started the prednisone taper, I suspect that is what you mean by "leveled off." I believe the drugs are out of your system within a couple of days.
I had the steroids for 5 days. That next week was awful. I was tired all the time, emotionless, and my face started breaking out bad.
That was in the middle of February, and my face is still breaking out. I've had my hormones tested and all were normal. Idk, maybe it's from all the meds I'm on.
Sorry I don't have a specific answer, but I'd guess about 2 weeks.
Laura