If it is too close to the body, it may result in the moxibustion device coming into direct contact with the skin, and the warmth of the moxibustion process may cause discomfort or burns to the skin. In addition, being too close to the body may also prevent the moxa from radiating its temperature sufficiently, resulting in poor moxibustion results.
If it is too far away from the body, the heat of moxibustion may not be effectively transferred to the body, thus affecting the effectiveness of moxibustion. A proper distance ensures that the warmth of moxibustion can be evenly transferred to the body parts, making moxibustion more effective.
Therefore, it is generally recommended to keep the moxa device about 3-5 centimeters away from the body. This allows the heat of moxibustion to be properly transferred to the body while avoiding discomfort or burns to the skin. However, the exact distance still needs to be adjusted according to the individual's feelings and actual situation to ensure that the body is comfortable.