How The Medicines Identify The Pain?
When we swallow a pain reliever (either as a liquid or a pill), do we have to tell it to go to the region of pain? Nope! The medicine in a pain reliever doesn't go directly to whatever part of the body is hurting. Instead, pain relievers work by going everywhere. After swallowing a pain reliever, it goes to stomach where it's digested and absorbed into bloodstream. Once it gets into blood, the medicine travels throughout the whole body. When cells in the body become injured or damaged, they release a chemical called “prostaglandin”, which is very sensitive to nerve endings. When they sense a release of prostaglandin, nerve endings transmit a message through the nervous system to your brain, telling it where and how much an area of the body hurts. Pain relievers work — all throughout the body — by preventing injured cells from releasing prostaglandin. When cells stop releasing prostaglandin, the nervous system stops sending pain messages to the brain and the brain stops receiving pain messages and we stop feeling pain.
