Hi,
Steroids will make your blood sugars rise I'm afraid. Whether you have to use these on a temporary or permanent basis is not really the issue. Sometimes other conditions have to be juggled along with the diabetes. I take them for a six week period occasionally. You really need to monitor your blood sugars and if you have not been given a testing kit, you have a reason for one now.
If it means taking medication is it really a bad thing? To be able to control both conditions is a must so I would not take it too badly as many of us have other health problems that also need addressing. There are many medications for other health issues that affect blood sugars. Diabetes in isolation is so much easier.