The Itch-scratch Cycle (IMAGE) Cell Press Caption This figure illustrates a dynamic pathological process known as the itch-scratch cycle. Credit Mack et al./<i>Trends in Immunology</i> Usage Restrictions Credit Required License Licensed content 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.