Scratching an Itch: The Surprising Science Behind It
2025-02-03
New research delves into the paradox of scratching. While it feels good, scratching worsens inflammation by activating mast cells and releasing substance P, leading to an inflammatory cascade. However, it also reduces Staphylococcus aureus, a common skin infection bacteria. Researchers conclude that while scratching might offer some benefit in specific contexts, the skin damage likely outweighs the advantages, particularly with chronic itching. This study, published in Science, opens avenues for new therapies targeting inflammatory skin conditions.