Question

how do painkillers know where the pain in the body?​

Answer 1

Answer:

Pain relievers work with your cells, your body's nerve endings, your nervous system, and your brain to keep you from feeling the pain. Your body is full of nerve endings in your skin and tissues. They tell the brain everything about the pain, like where it is and how much it hurts.

Answer 2

When prostaglandin is released, the nerve endings respond to it by picking up and transmitting the pain and injury messages through the nervous system to the brain. They tell the brain everything about the pain, like where it is and how much it hurts.