During the preparation for pregnancy, you can have moxibustion once every 3-5 days, according to your own situation, there is no such thing as once every few days. Moxibustion has the effect of warming the meridians and dispersing cold (warming the meridians of the human body to get rid of the cold in the body), promoting qi and activating the blood (promoting gas to make the blood flow), etc. If there is a cold uterus, blood stasis and other reasons affecting the normal pregnancy, you can use moxibustion therapy, can play a role in warming the uterus, activating the blood and other effects, which will help to prepare for the pregnancy. Generally, during the preparation for pregnancy, you can moxibustion once in 3-5 days, do not be too frequent, or you may have symptoms such as mouth and tongue sores, dry throat and tongue. It is not recommended to use moxibustion to help prepare for pregnancy if there is a deficiency of yin and fire (deficiency of yin and essence in the body, resulting in hyperactive fire), such as five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest (irritability and sultriness)), tinnitus, and so on. If you need to use moxibustion to help prepare for pregnancy, it is recommended to use it under the guidance of a doctor.