Current meaning. At the end of the Mexican flag history, certain symbols and meanings were agreed upon. The new meanings of the colours are fairly recent: Green is hope, white is unity, and red is the blood of heroes. These meanings are not enforced by law, so they may continue to change.
Annular tear and irritated spinal nerve root. Selective nerve root blocks are one of the most commonly given spinal injections. They can be used to treat or diagnose back and/or leg pain due to damaged nerve roots. A nerve root is a collection of nerves that have branched off the main spinal cord on their way out to serve the rest of the body.
How Do Cortisone Injections Work? The cortisone in the injection is a type of steroid that works by reducing inflammation in the affected area. Many people think cortisone is a pain reliever, which isnât the case. Pain relief comes as a result of the inflammation diminishing.