Question
After a day of sunbathing at the beach, I came home with my skin red as if it had been scorched, and there’s a burning sensation that makes it uncomfortable to sleep on the bed. Besides sunscreen, what simple methods can be used to alleviate this pain?
Answer
There are two optimal times for sunbathing during the day. One is between 6 a.m. and 10 a.m., during which there is more infrared radiation and less ultraviolet radiation, making people feel warm and gentle while promoting blood circulation. The other is around 4:05 p.m., when the α-ray of ultraviolet light is at its peak, promoting the absorption of calcium and phosphorus in the intestines, producing vitamin D, which is beneficial for strengthening blood circulation and promoting normal calcification of bones. Regardless of the season, it is not suitable to sunbathe for long periods between 10 a.m. and 4 p.m. If there is a reason to run in the sun, it is best to take protective measures such as applying sunscreen, wearing a hat, and using an umbrella because the sun’s energy is strongest at this time, which can easily cause damage to the skin.