Interstitial lung disease is a refractory disease damaging the respiratory system. In clinical practice

Professor WANG Shuchen proposes to treat it from the perspective of lung impediment. He believes the root pathological mechanism lies in the deficiency of kidney qi and yang

while the branch cause is the blockage of lung collaterals. He establishes a treatment method and prescription formulating principle involving the warming of the kidney qi

regulating of middle-jiao Qi

expelling of wind and removing of dampness

and unblocking collaterals.