How Scratching An Itch Can Make It Itch even More (audio) Washington University School of Medicine Share Print E-Mail Loading audio... Caption Researchers at Washington University School Of Medicine In St. Louis have found that when you scratch an itch, you get a bit of relief because the scratching creates pain signals that travel to the brain. The problem is that those pain signals cause the brain to secrete a neurotransmitter that makes itching even worse. Jim Dryden reports. Credit Washington University BioMed Radio Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.