​How to protection from the sun correctly in summer？

Summer heat, in the face of intense ultraviolet rays, how should we correctly prevent sun?

“Sun protection is not just about preventing tanning, but also preventing sunburn.. Hard sun protection such as umbrells, sunglasses and sunscreen, as well as applying sunscreen, can help prevent skin aging to some extent." Xuanwu Hospital of Capital Medical University dermatology deputy chief physician Chang Xiao said, everyone should according to their skin condition, sunscreen needs to choose sunscreen and supplies.

Chang Xiao told reporters that it is not necessary to apply sunscreen when going out, and it may be a burden on the skin to wear sunscreen every day. For example, in the home or office environment, as long as you are not standing next to transparent glass for a long time, you do not need to apply sunscreen. Hard sun protection can achieve good sun protection if it is only exposed outdoors for about 20 minutes, or if the UV index is below 2. If UV rays are intense, or if you spend more than half an hour outdoors, a hard superimposition of sunscreen is recommended.

According to the different ingredients of sunscreens, sunscreens are divided into physical sunscreen, combination of physical and chemical sunscreen, and chemical sunscreen. How should sunscreen be applied? 'If it's a physical sunscreen, you just need to apply it before going out,' Chang Xiao said. Others need to be applied 20 to 30 minutes before going out for good results. Sunscreen should be applied generously, generally about the size of a coin for the entire face, and supplement according to the actual use

"Patients with sensitive skin are generally advised to choose hard or physical sunscreens." 'You also need to clean up after you use sunscreen,' Chang Xiao said. General physical sunscreen, physical and chemical mixing, chemical sunscreen supplies can be used to clean face milk, for waterproof anti sweat type sunscreen, You need to use makeup remover products. If the patient has erythema, edema, blisters, etc. on the skin due to long-term intense ultraviolet irradiation, cold compress can be used for slight discomfort, and serious cases should be treated as soon as possible.