Patient and Doctor (IMAGE) MediaSource Caption Donald Leung, M.D., speaks with a patient at National Jewish Health about her eczema symptoms. Dr. Leung is leading a clinical trial that uses lotion containing good bacteria to kill the harmful bacteria on the skin of eczema patients. Credit National Jewish Health Usage Restrictions All multimedia is available for free and unrestricted media use with a courtesy to National Jewish Health 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.