Do you know how pain killers work?

Two ways pain killers work.
Pain Killers like Ibuprofen stop the injured cells from making a certain chemical which tells the brain of the pain.
Pain Killers like Paracetamol and Codeine work by stopping the pain messages from entering the brain.
The pain is still there but the brain tells you it isn't.
Your simplified health lesson for the day 🙂