Short Wave Itchy? Here's why
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Sep 25, 2023 Dr. Shawn Kwatra, a leading dermatologist and director of the Johns Hopkins Itch Center, dives into the maddening world of itchiness. He explores the science behind why we itch, from its evolutionary purpose to the physiological mechanisms at play. Kwatra addresses the complexities of chronic itch, emphasized by his personal experiences with eczema and hives, which cultivate his empathy as a physician. The discussion highlights recent advancements in research and the urgent need for better diagnostics and treatments for this often-overlooked condition.
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Personal Experience with Itch
- Dr. Shawn Kwatra shares his personal experience with chronic itch, including eczema, hives, asthma, and seasonal allergies.
- He believes these experiences give him greater empathy for his patients.
Evolutionary Purpose of Itch
- Itch serves as a warning signal for potential dangers like poisonous plants or insects.
- This reflex is advantageous for avoiding harm, but can become problematic in chronic itch.
The Immune System and Itch
- The immune system plays a crucial role in itch by stimulating nerves that transmit the itch message.
- Immune cells release substances that trigger these nerves, especially in conditions like eczema.