Book excerpt: If you have confusing and unexplained breathing problems or your asthma has not responded to treatment, this book is for you. The Chronic Cough Enigma is written for people who have been coughing for months or years and cannot get useful answers from their doctors. More than 20 million Americans suffer from what is known as enigmatic chronic cough. This book provides insights from Dr. Jamie Koufman’s almost forty years of successfully managing thousands of long-suffering cough patients. Indeed, the typical chronic cough patient who comes to her office has been coughing for more than a decade. This book provides the many who suffer from chronic cough new and potentially life-changing information and the potential to be cured.