This document discusses chemo-neurolysis, a technique using chemical agents to block nerves for managing spasticity. It provides a brief history of phenol use in neurolysis since the 1860s. While chemo-neurolysis was commonly used before botulinum toxin, its use has declined due to high botulinum toxin costs and lack of training. The document outlines various nerve blocks and injection techniques used to manage spasticity in specific muscles, such as the pectoralis nerve block. It discusses factors like phenol concentration and dosage. Potential side effects are also noted. The document advocates for chemo-neurolysis as a low-cost alternative for focal spasticity management.