Professor WANG Shouchuan holds that internal wind-phlegm lurk in interior is the internal root of infantile asthma. Prof. WANG puts forward asthma treatment by three stages: attack stage

deferment stage and remitting stage

with dispelling wind and dissipating phlegm as the therapeutic method. At the attack stage

dispelling wind and clearing phlegm is adopted to attack the pathogen and treat the lung. At the deferment stage

root cause and symptoms are both treated to dispel wind and strengthen vital Qi. At the remitting stage

invigorating and consolidating body resistance

as well as moistening lung

spleen and kidney is used

which seems effective in clinic.