It is believed that the onset time of the novel coronavirus disease（COVID-19） is related to the abnormal climate

which is in line with the prediction of doctrine of five evolutive phases and six climatic factors in Plain Questions（《素问》） for the "Binwenli"（病温厉）. The spring cold weather characteristics

epidemic situation and prediction in the year 2020 was analyzed

and general methods of diagnosis and treatment of syndrome differentiation was proposed. In the early stage

for mild patients

modified Yinqiao Powder（银翘散） and Sangju Drink（桑菊饮） was used to disperse lung qi and clear stagnated heat

dissipate phlegm

remove toxicity; moderate and severe patients were given Maxing Shigan Decoction（麻杏石甘汤）

to free lung and relieve asthma

to clear heat and dissipate phlegm

to remove toxicity

to supplement qi

to prevent depletion and to relieve desertion. For patients in the reco-very period

Sangxing Decoction（桑杏汤） and Yupingfeng Powder（玉屏风散）

modified Yigong Powder（异功散） were given to benefit qi and nourish yin

invigorate the spleen and harmonize stomach

clear residual heat

residual phlegm and residual toxicity. In addition to the general methods of differentiation and treatment

principle of treatment in accordance with seasonal conditions

local conditions and patient′s individuality is emphasized. At the same time

discussion was made on whether the COVID-19 must be cold-damp converging in the exterior and the method of removing dampness.