This paper summarized professor JIANG Liangduo′s experience in treating pulmonary nodules by keeeping unobstructed state and dealing with toxin. He believes that pulmonary nodules are caused by healthy

qi

deficiency，

qi

stagnation and dampness obstruction， resulting in phlegm stasis， toxin constraint； the local accumulations lead to the “obstructed state”. Therefore， the method of “keeping unobstructed state and dealing with the toxins” is one of the effective ways to eliminate pulmonary nodules and to prevent nodules from transforming toxins and cancers. To keep the unobstructed state， firstly， attention should be paid to rectify

qi

both in the chest and of the liver to restore the liver′s function of governing the free flow of

qi

）； when there is no obstruction of

qi

movement， the body fluids are not constraint， and the blood circulates smoothly. Secondly， it should be focused on to reinforce healthy

qi

and supplement

qi

deficiency， especially in the lung， kidney and spleen. Thirdly， it is suggested to drain dampness， dissolve phlegm and dispel turbid， and to invigorate blood and dissolve stasis. Meanwhile， the herbal medicine which has strong searching and expelling function， and can unblock the meridians and collaterals are used， so as to unblock collaterals， dissipate masses， and eliminate the accumulations and gatherings. When relieving the toxins and remove accumulation of pulmonary nodules， herbal medicine of heat-clearing， toxin-relieving and dampness-removing are often used， which have strong effects of suppressing toxins and dissipating masses

.