After boiling, Chinese herbal medicines can usually be stored in the refrigerator at the preservation temperature for about 1~7 days. The length of preservation time is related to the packaging of the tonics and the storage environment. If you feel any deterioration of Chinese medicine, you should stop taking it. If the Chinese medicine boiled by yourself is vacuum-packed, the preservation time can be about one week if it is refrigerated at 0~5℃. If they are in ordinary vessels and not sealed, it is recommended to take them on the same day. Chinese herbal medicines contain substances such as sugar, starch and proteins, which are complex in composition and are susceptible to deterioration when stored for too long, affecting the therapeutic effect, so it is recommended that they be taken on the same day of boiling as far as possible. If you need to use Chinese medicines, you should be guided by a doctor to use them, and should not use them blindly on your own, so as not to cause adverse effects on your body.