Muscle injections with lidocaine improve resting fatigue and pain in patients with chronic fatigue syndrome.
Staud, Roland, Kizer, Taylor, Robinson, Michael E·Journal of pain research·2017
Researchers tested whether injecting a numbing medication (lidocaine) into muscles could help ME/CFS patients with fatigue and pain. Compared to a placebo injection, lidocaine injections did reduce fatigue more effectively, and both types of injections reduced pain, depression, and anxiety. This suggests that signals from muscles themselves may play a role in ME/CFS symptoms.