After 6 months, 2 mri, 2 foot orthopaedic surgeons and 1 pain consultant I’ve finally been told I have tailors…

After 6 months, 2 mri, 2 foot orthopaedic surgeons and 1 pain consultant I’ve finally been told I have tailors buionette. I have been advised to buy some special insoles which have helped a little so now the consultant has said he’s going to give me an injection which will apparently really help with the pain. Has anyone had this injection? Does it hurt? Any advice on post injection care? Many thanks