In the past, the parents of asthmatic children used to ask doctors to write notes excusing their children from gym class, out-door assembly, and clean-up--or even to allow them to take a leave from school.
過去氣喘病童的家長多要醫生開證明，證明孩子不能上體育課、不能朝會、不能打掃；有些甚至休學在家裡。