Yes, steroids are quite a problem with diabetes. Try to keep the course as short as you can and do discuss this with the nurse. If the time on steroids is likely to be longer, then some people are put on insulin for a while. Do keep measuring your sugars to check they don't go into the 20s. Below 20 you should be OK and the diabetes shouldn't be making you feel lousy but if you go into the 20s/30s it can be dangerous due to Ketones. Do keep the carbs down to help.