Emergency rescue measures must be taken for cold care after sun exposure, and the most important thing is to quickly eliminate the burning sensation on the skin in time.

It is wise to turn on the electric fan or air conditioner to blow cold air first. Many people rush to wash their faces with a basin of hot water as soon as they get home, which can wash away sweat, but it can't quickly eliminate the burning sensation of the skin, which is counterproductive.

It is best to use cold boiled water to cool the skin in summer. Some people call cold boiled water a beauty product. Japanese beauty experts have found that washing the skin with cold boiled water often can keep the skin cells hydrated enough, making them soft, delicate, shiny and elastic. Cold boiled water is actually a kind of "degassed water" with little air. The research shows that when the boiling water is naturally cooled to 20℃-25℃, the gas dissolved in it is less than that before boiling 1/2. The properties of water have also changed accordingly, such as increased cohesion and tighter molecules. These substances are very close to the water in biological cells and have great affinity, so that cold boiled water can easily penetrate into the skin. In addition, cold boiled water can make subcutaneous fat semi-"liquidized", thus making skin look tender, smooth and fit.