There is no such thing as several pairs of Chinese medicines in a course of treatment. The time of taking Chinese medicines needs to be judged according to the condition, individual physique and the absorption of Chinese medicines. Generally speaking, external diseases and acute diseases such as common cold, cough and acute diarrhea can be cured with 3 to 7 doses. For chronic diseases, such as vertigo, palpitation, etc., a longer period of time is needed. This is because during the treatment of chronic diseases, doctors also need to add or subtract prescriptions accordingly to the changes in the patient’s tongue, pulse and symptoms after using the medicine. Moreover, each person’s physical condition is different, and the ability to absorb Chinese medicine is also different, so the duration of Chinese medicine treatment is also different. Patients need to follow the doctor’s instructions and go to the hospital for regular follow-up during the period of taking Chinese medicine, and do not stop taking the medicine without authorization, so as to avoid adverse consequences.