How long should it take to return to "Normal" after a steroid shot?

I got a shot in the shoulder, and was told my sugar could go up to 500. After a week or so I called my doc and asked and was told it should return in one week. It's two almost three weeks and I'm still running my basal rate at 140%. Normally this time of year I start running low and have to ajust to keep it up. I just wondered if this is from the shot or if I'm becoming resistant or omething else.

Figure 4 weeks.

Thanks guys! I was starting to worry. The first week I had to run at 200% basal to stay anywhere near normal.