We all know the traditional methods of treating injuries, the folk have plaster, smear medicinal wine, rubbing the injured parts, using hot water bags, frying hot large salt grains, etc. In modern hospitals there are physical therapy instruments (infrared, short-wave, microwave, wax therapy), etc.. These topical methods are roughly divided into three categories. Zhou Meng Han, Department of Orthopedics, Fifth Affiliated Hospital of Xinjiang Medical University, is a category of ointment: various kinds of ointments. One category is the application category: white wine, medicinal wine, vinegar, etc. One category is the heating category: hot water bags, fried hot large grains of salt (sand), various physical therapy instruments in hospitals (infrared, short-wave, microwave, wax therapy), etc. First of all, a variety of plasters human’s earliest plaster is the palm of their own hand. When any part of the body is hit, immediately cover the injured location with your hand will feel able to reduce pain. But the hand can not cover the injured part for a long time, you need a substitute, so there is a poultice. The initial poultice was made of gum coated on leaves and hemp fabrics, and later there were cloth products, which are now poultices. The ancient people found that the gum was not as warm as the palm of their hands, so they added substances to the gum that made the skin feel hot, such as wine, pepper and other medicines. The purpose of these medicines is to make the skin feel hot. These substances that make the skin feel hot are actually weak acids that corrode the skin to produce a burning sensation. This is why people with sensitive skin can develop redness and blisters. It is actually a superficial chemical burn. The injured area is already swollen, plus the cream is equal to the injury on top of the injury. The natural swelling will be more obvious. And then those who apply the class of medicine white wine, bruising wine, bruising oil, and other anointing class of drugs are essentially weak acidic volatile liquid. All people who have used these types of drugs have the feeling of being cool first and then hot. The coolness is the use of the volatility of the drug to take away the heat from the damaged skin to relieve the pain. The part that does not volatilize corrodes the skin creating a burning sensation. If you add rubbing to the mix, all that remains is pain. The injury itself should be swollen, rubbing the force is lighter on the injury is also squeezed, can not hurt? Finally, the heating class method outside the skin heating, in fact, can only expand the blood vessels under the skin’s epidermis, the deep blood vessels do not work, if the deep blood vessels also expand with the temperature, the epidermis should be hot cooked. Heating and the two aforementioned types of drugs have a common reason: “activating blood circulation and resolving blood stasis”. There is the so-called “no pass is pain, pain is not pass” theory of Chinese medicine. In fact, this theory is wrong. First of all, blood flow in the blood vessels. After an injury, the blood vessels in the injured area may or may not be ruptured. No rupture is naturally normal flow. The ruptured blood flows out of the blood vessel and enters the place outside the blood vessel. Can it return to a normal blood vessel by itself through heating? That doesn’t make sense, does it? The heating can make the blood vessels dilate, and the blood supply increases at the heated site, and the amount of blood flowing out at the injured site decreases instead due to the inability to move. The increased collection of blood at the injured site naturally increases swelling and pain. The fact is that the bleeding collects together and clots, and the clots are removed by the cells in the tissues that are responsible for removal. It does not flow out from the blood vessels. So it is a false illusion to activate blood clots. Therefore, the correct treatment after injury is: one to maintain inactive state is the best treatment for injury. Two in the inactive state if there is pain, you can do continuous cold compress until the pain disappears. Cold compress can reduce the skin surface temperature, reduce edema and pain. In fact, after a day of injury, inactivity will not have pain. Three themselves can not determine the injury, you can go to the hospital to do imaging. After reading the above, you should know that those doctors who let you use drugs (regardless of how old and high level) are as ignorant as you are, right? P.S. The principle of vascular circulation is divided into arteries and veins. Arteries start from the heart, extend to the whole body, gradually bifurcate and become thin, and finally fine into capillaries. Veins start from the capillaries and gradually converge and become thicker to terminate at the heart. The outgoing blood is in the arterial vessels and flows by the heart’s compression. Blood returning to the heart is in the venous vessels and flows by muscle contraction and compression. Excess water from the non-vascular parts of the body flows into the veins through the lymphatic vessels. If the limb is inactive, the arterial blood supply does not stop and the venous return is reduced, blood collects in the inactive area and the water in the blood leaks out of the blood vessels into the tissues surrounding the vessels forming edema. The water that leaks out of the blood vessels is partly recovered through the venous vessels and partly collected back to the heart through the lymphatic vessels. This article is published with permission from Dr. Zhou Meng Han.