Scratch Itch Cycle

The scratch-itch cycle describes how itching leads to scratching, which temporarily relieves the itch but often worsens it over time. When the skin is irritated or inflamed, nerves send an itch signal to the brain. Scratching provides short-term relief by distracting these nerves and temporarily blocking the itch sensation. However, scratching damages the skin, causing more inflammation and releasing chemicals that increase itchiness. This creates a cycle where the more you scratch, the more likely you are to itch again, leading to persistent or worsened skin discomfort. Breaking this cycle often involves treating the underlying cause and resisting the urge to scratch.