Eli5- trapped nerve in shoulder, do painkillers allow us to release the tension from pain?

Question

So why does painkillers allow our muscle to be free flowing? Is it cause when we’re in pain our muscles try to protect itself so it keeps tense? Or does the painkiller heal it a bit

In: 2

Answer 1

Different types of pain killers for example NSAID’s have an entirely different methodology of action to an opioid so the type of pain killer is fundamental to the question.