The prognosis for asthma is variable. For childhood asthma, about 1/3 of children will outgrow asthma by adulthood, 1/3 will get better, but relapse on occasion, and 1/3 will remain the same in adulthood. The prognosis for people with asthma is greatly improved with good treatment of asthma, including avoiding any smoke. Dr. James Li, the Chairman of Allergic Disease at the Mayo Clinic, discusses the prognosis in asthma.