Childhood and adolescents' asthma is the most common chronic disease of childhood and is the major cause of absenteeism from school students. To deal with the disease often require hospitalization, fortunately, very rare enough to be life-threatening. Since the mid-80s had clearly expressed by several centers to observe the rising incidence of the disease. The next year observation was confirmed many times. Childhood asthma has been characterized as a disease of modern Western civilization. It affects a large proportion of the child population and seems to take longer epidemic character.