The difference between chlorite and pumice lies in its composition, efficacy and functional indications. Pumice is salty and cold, which comes from the bones of animals such as liverworts. It has the functions of clearing away lung fire and resolving old phlegm, and is generally treated by oral administration for patients with cough, accumulation of old phlegm and gonorrhea. Efficacy and function of Meng Qingshi: resolving phlegm and reducing qi, calming the liver and relieving convulsion. Used for intractable phlegm, cough and asthma, epilepsy, irritability, chest tightness, convulsion and convulsion. Usage and dosage: Take 3 ~ 6g of Duoru Pill powder to decoct 10~ 15g, and fry it after it is wrapped in cloth.