Hello, I'm Dr. C. Andrew Schroeder for About.com. Cough variant asthma is simply asthma in which the most prominent symptom is cough.It can produce a disabling cough. This type of asthma is treated the same way as regular asthma. The only way to truly know if you have cough variant asthma is to start the appropriate asthma treatment and have resolution of your cough. The treatment course should last at least six weeks. If appropriate asthma treatment does not resolve your cough, you may not have cough variant asthma. This means that you and your doctor need to go back to the drawing board. By using the correct treatment, with the help of your doctor, you can achieve excellent control of your cough variant asthma. I'm Dr. C. Andrew Schroeder for About.com. Thanks for watching.