Phenol can be injected into your muscles to treat a condition known as muscle spasticity. This happens when your brain doesn’t communicate properly with your spinal cord and nerves. It causes your muscles to become tight.
A phenol injection helps limit the signals sent from your nerves to your muscles that cause contractions. This allows you to move more easily and feel less discomfort.
This treatment is similar to getting a botulinum toxin A (Botox) shot. But phenol tends to be more useful for large muscles.