2. "Health-keeping urn steaming" belongs to "venting" in Chinese medicine, and venting for too long can easily lead to collapse. For most people, about 20 minutes is enough. On this basis, we can increase or decrease the time according to our physical strength.

3, whether dry steaming or wet steaming, it is best not to exceed 20 minutes each time. After steaming once, it can be soaked or washed with cold water, which is called "supercooled river" to let the discharged secretion flow away. Then steam for more than ten minutes. If so, three times is what people who often go to the sauna call three steams and three showers.