I would ask your doctor how long will he/she want you to take prednisone?

When their answer isn't anything definitive, ask them how will you be able to taper off prednisone when your body becomes dependent on prednisone as your exogenous form of cortisol.
https://medlineplus.gov/ency/article/000389.htm#:~:text=This%20hormone%20is%20normally%20made,like%20cortisol%20in%20the%20body.