That's a great question, ! Unfortunately, we are not medical professionals, so I can't say one way or another if your rheumatologist would feel comfortable with you trying prednisone again, but hopefully any of our community members with personal experience can chime in here and let you know whether or not they were able to use prednisone after having blood sugar affected.
That being said, are you also on other medication to help with your RA? Most doctors do not like to use prednisone long term (although there are, of course, exceptions) as there can be usage consequences, as well as the fact that the prednisone doesn't do anything to help stop the advancement of RA. Typically doctors will use prednisone as an addition to another medication, or as an "as needed" situation. (Here is more information on steroids and RA, https://rheumatoidarthritis.net/treatment/steroids) Obviously, I have no idea what your rheumatologist is like, so I can't say how they would feel about prednisone, but it certainly doesn't hurt to talk through this with them.
I'm also sharing a link to an article with more information on types of treatments for RA, https://rheumatoidarthritis.net/treatment, in case you're interested.
Hopefully you will get some input from other community members here, and the articles I shared will help get a conversation going with the doctor. Please, if you're comfortable, let us know how things go. -- Warmly, Christine (Team Member)