http://bestdocsnetwork.com/dallas-and... Watch as Immunologist & Allergist Dr. Rene Leon discusses the importance of allergy shots, and just how easy the process can be. Dr. Leon's patient Michael was having a lot of respiratory issues and he could't sleep at night or do many outdoor activities. Watch and see how Dr. Rene Leon's approach to rapid desensitization helped him enjoy a better life. Learn more on the Best Docs Network.