It is a new type of painkiller widely used in foreign countries in recent years, mainly used for joint sprains, muscle strains, bumps, kicks and contusions (unbroken skin) and other accidents after the occurrence of the first time of self-help and mutual aid, anti-inflammatory, hemostasis, to prevent the development of the role of the swelling, which can be used to make the injured person to get the first time of the rescue, to minimize the personnel's injuries and pain, suitable for the outdoors, at home, traveling, driving and sports,. It is easy to carry and simple to use. It is not an anesthetic, with the nature of hydrogen ethane, which was used for superficial anesthetics in our country in the past, is different. Because it can quickly stop pain, stop bleeding, quite popular with soccer players.