Did you know the cortisone used in the spinal epidural is not approved by the FDA for disc problems? Has it helped your back pain?

A very close friend of mine has arthritis from neck to ankles, mostly in her lower back. I think it’s fibro but her doctor said he “never heard of fibromyalgia.” He or another doctor recommended she submit to a few cortisone shots in her spine and never mentioned chiropractic adjustments. If you have had cortisone in your spine what has it done, good or bad, for you? Kenalog , I think it’s called, has not been approved by the FDA for this purpose (a dot gov. site says this) but, at 2K a treatment, the FDA looks the other way.