Muscle spasms in the back or neck may intensify days after a crash, limiting movement and benefiting from heat

https://juliuswpfe581.trexgame.net/neck-and-spine-doctor-for-work-injury-restoring-motion-and-comfort

Muscle spasms in the back or neck may intensify days after a crash, limiting movement and benefiting from heat, gentle stretching, and medication.