No doctor will want to prescribe prednisone for reactive arthritis ...however it just depends on how much pain you have.

"Low-dose prednisone may be prescribed, but prolonged treatment is not advisable. Antibiotics may be given to treat underlying infection. Disease-modifying antirheumatic drugs (DMARDs) such as sulfasalazine and methotrexate may be used safely and are often beneficial."
https://emedicine.medscape.com/article/331347-treatment#:~:text=Low%2Ddose%20prednisone%20may%20be,specific%20surgical%20treatment%20is%20indicated.