How much does it itch?
(Northwestern University) Itch can be as debilitating as chronic pain. But it's a hard symptom to measure -- particularly for the 10 million U.S. children with atopic dermatitis, also known as eczema. But now there is a soft, wearable sensor that quantifies itch by measuring scratching when placed on the hand. It allows parents and doctors to track how well itch is being controlled in patients, monitor treatment response and early signs of worsening disease.