Welcome. I too have mild scoliosis (about 20 degrees) from C4-T4, and among other problems, also have facet arthritis in that region... and get a lot of pain from it.
In my case, though, the pain is only on my left side (concave curve).
I had an epidural in my cervical spine last year... just one injection in my case if I recall correctly. Doctors may inject at multiple levels or just the uppermost, letting gravity bring the medication down.
C4-T4 Scoliosis (disk degeneration, stenosis, narrowed neuroforamen, bone spurs), RT hip and SI joint damage from car accident. Also, pectus excavatum, supraventricular tacycardia and mitral valve prolapse syndrome.
Current meds: Ultram ER 300mg daily, breakthrough - hydrocodone 10-15mg, or oxycodone 5-7.5mg. .25-.5mg ativan as needed for sleep, Verapamil 240mg SR (for tachycardia). [/gray