Coronavirus disease 2019（COVID-19） belongs to the category of "pestilence" of traditional Chinese medicine（TCM）. According to the information of TCM diagnosis and treatment experience in 52 confirmed cases including 32 cases in the initial stage

16 cases in the advanced stage

2 cases in the extreme stage

and 2 cases in the recovery period

it is believed that the pestilence is related to dampness toxin invading the lungs and spleen. TCM treatment should be based on the combination of disease identification and syndrome differentiation in stages: firstly

initial stage: with heavy dampness and light wind heat

dampness toxin attacks lung and spleen

and obstructing normal physiological functioning; the treatment should be to remove dirt and to resolve toxin

elimination of pathogens through purgation and diuresis

scattering wind and clearing heat. The prescription is modified Yinqiao Powder and Ganlu Xiaodu Pills（银翘散合甘露消毒丹）. Secondly

progressive stage: dampness toxin blocking the lung

toxin injuring meridians

Fu Qi being obstructed; the treatment should be to remove dirt and detoxification

to eliminate pathogens through purgation and diuresis

and to diffuse the lung to expel phlegm. The prescription is modified Qianjin Weijing Decoction Heshengjiang Powder（千金苇茎汤合升降散）. 3) Extreme period: internal block and external collapse;the treatment should be removing dirt and dissolve toxin

opening the block and collasping

and restoring yang to save from collapse. The prescription is modified Sini Decoction or the three treasures of warm disease Angong Niuhuang Pills（安宫牛黄丸）

Zixue Pills（紫雪丹） and Zhibao Pills（至宝丹） or Suhexiang Pills（苏合香丸）. 4) Recovery period: Deficiency of lung and spleen qi

retaining of damp-turbidity; the treatment should be remove the dirt and detoxification

clear away remaining pathogen; the prescription is modified Wuye Lugen Decoction. The treatment of all phases is based on removing the dirt and detoxification

with Rhizoma Cimicifugae and Radix Angelicae Sinensis as the basic drugs. It respectively expels evils

dissipating diarrhea

dissipating the qi movement and diarrhea

and removing blood stasis and unlocking the collateral.