Asthma is a lung condition causing periodic wheezing and difficulty breathing. It has several underlying pathologies and patterns according to Chinese medicine:
1) Invasion of Wind Cold causes rapid, labored breathing with cough and thin white phlegm.
2) Accumulation of Phlegm-Heat in the Lungs results in short, rapid breathing with loud wheezing, coughing thick yellow phlegm, and fever.
3) Lung Qi Vacuity presents as shortness of breath, weak cough and wheezing, spontaneous sweating, and thin runny phlegm.
4) Lung Yin Vacuity causes choking cough with scanty phlegm, dry mouth