You can combat the vicious cycle caused by atopic dermatitis — aka eczema, a condition in which scratching leads to more itching — with simple but effective methods and treatments. Tanya Trevett, who ...

Have you ever wondered why scratching sometimes makes itching even worse? The neurotransmitter serotonin has been fingered as one troublemaker as the brain tries to control pain caused by scratching.

DAVE DAVIES, BYLINE: If you think itch is no big deal, it's probably because you've never had severe chronic itch. You might think, just scratch it and stop complaining. But our guest, Dr. Gil ...