The researchers also demonstrated that scratching prompts pain-sensing neurons to release a chemical known as substance P, which triggers mast cells: cells involved in the immune system, causing ...

Inflammation is when our bodies release chemicals to fight off infections which can help healing. It can cause swelling and ...

Mice that were free to scratch their itchy ears saw the number of immune cells go up and levels of infection-causing bacteria ...

Scratching isn’t just a bad habit — it’s an immune defense mechanism. While it fuels inflammation, it also helps fight ...

The research highlights why avoiding scratching is essential for healthier skin. Scratching may feel good in the moment, but it often makes rashes worse by increasing inflammation. While it can help ...