Having Foot Pain With Discoloration And Swelling. Had Metatarsal Fix. MRI Showed Mild Difuse Disc Bulge L5-S1. What Can Be Done?

Question : had 5th metatarsal fx in XXXXXXX (junction of XXXXXXX fx vs large avulsion fx) MD wanted to try conservative treatment. In april, still had foot pain while walking with discoloration and swelling. plain films showed demineralization bone scan positive. Was told I had mild RSD (CRPS). Still have clicking/ popping in foot at times. Unable to do heel rise or bear weight on ball of foot with heel raised. ( just won't do it, foot collapses ) and some light buzzing sensation in foot. was sent to phys med doc. who thought it might be s1 radiculopathy. I was told MRI essential normal, showing mild difuse disc bulge L5-S1 and bilat facet arthrosis no herniation central canal or neuroforaminal narrowing. Also 1.o cm round R1 and T2 hyperdense lesion in inferior aspect of L4 vertebral body likely representing hemangioma. Short course of tapering prednisone offered fleeting improvement in strength in foot but mostly have experienced increased weakness primarily LLE. waiting for follow up appt a month away. worried this might get worse. Any ideas as to why the persistent foot deficit? what can be done?