Astragalus, maitong and xiyangshen can be taken in water by rinsing with cool water and then soaking in boiling water for half an hour, please follow the doctor’s instructions. Astragalus, maitong, xiyangshen belongs to the traditional Chinese medicine tablets, after shelling or long time, there will be dust on the surface of the herbs, you can use cool water to rinse the surface of the dust, and then use boiling water to soak directly for half an hour. If you use cool water or soak for too short a period of time, the medicinal effect of the drug is not easy to play out. It is recommended to choose glass cups, stainless steel cups, ceramic cups and other stable cups when steeping, it is not recommended to use iron cups, aluminum cups, copper cups and other unstable cups, to avoid reactions with the drug. In addition, the medicinal effect of tea is limited and cannot replace the therapeutic effect of Chinese medicine soup or proprietary Chinese medicine. If you feel unwell, please consult a doctor in time and use medication under the guidance of a professional Chinese medicine practitioner.