Fumigation therapy is a treatment method of fumigation, bathing and drenching on the skin or the affected area while it is hot by using a decoction of medicine. With the help of medicine and heat, it acts on the muscles through the skin and membranes to promote the unblocking of the knees, the harmonization of the veins and blood, thus achieving the purpose of preventing and treating diseases. Fumigation therapy is economical and simple, easy to learn and use, wide range of indications, significant curative effect, no pain and other characteristics. Modern medical experiments have confirmed that the moist heat during fumigation can accelerate the absorption of drugs in the skin; at the same time, the increase in skin temperature can make the tiny blood vessels in the skin expand and promote the circulation of blood and lymphatic fluid, so it is conducive to the dissipation of hematoma and edema. Because the warm stimulation can activate the phagocytic function of reticuloendothelial system, increase the permeability of cells and improve metabolism, it has the effect of detoxification and swelling, activating blood circulation, promoting qi and relieving pain, dispelling wind and drying dampness, killing insects and relieving itch, promoting the growth of granulation tissue and facilitating the healing of wounds. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. A bottle of alum lotion 500ml, each time with 250ml of liquid in the ratio of 1:2 to 500ml of hot water placed in the basin, the best fumigation before emptying the bowels, the patient exposed the affected area first with the liquid heat fumigation of the anal area, when the temperature of the liquid down to about 40C, a towel or gauze dipped in the liquid washing, sweat impregnation of the affected area, fumigation time is 20 minutes. There are also many patients who ask how to fumigate their own decoction if they don’t have a homemade preparation and the doctor has given them a prescription for herbal medicine. The following is the correct method of decoction fumigation. Wrap the herbs in a piece of gauze, or sew a bag with gauze to put the herbs in, put the herbs in an enamel pot or a pot that is not afraid to burn, pour 2000-3000 ml of cool water, (to water without medicine two fingers is good) cool water to soak the herbs for 2 hours, you can directly put the pot on the stove, boil it and then change the fire to simmer for 12-15 minutes. Patients empty the bowels, the decoction basin (liquid including dregs) on the bidet, can also be placed on the toilet or put a square stool horizontal, the basin put under the stool, the patient exposed the affected area first with the liquid heat fumigation of the anal area, when the temperature of the liquid drops to about 40C, with a towel or gauze dipped in the liquid washing, sweat impregnation of the affected area, fumigation time for 20 minutes. After washing the liquid and slag do not pour, the next time to heat and boil can be repeatedly applied. If the last liquid evaporates or spills some, you can add some water to the decoction when you use it again. According to the condition of one to two times a day, a dose of medicine available for two to three days. If you boil the medicine at night before going to bed in the summer heat, it will not go rancid the next day. Some Chinese medicine can be put directly into a basin with boiling water without decoction, and then cover a basin for a while, about 20 minutes can be fumigated, repeated use, just add some boiling water. The more you use hot wash, the more itchy you are.