The sunshade is easy to corrode. Never use it as an umbrella

the sunshade does not shade the sun, and it is sunlight dermatitis it is impossible to prevent

Summer is coming and the sun is burning. Some readers who think that they have done a good job in sunscreen measures still have sunburn dermatitis. How is this?

A Ms. Jin, who was waiting in line at the Nanjing Integrated Chinese and Western medicine hospital, told the reporter: “recently, I feel that the outdoor temperature is high. I have specially prepared a new sunshade. But my skin is still getting darker and darker. There are many small bumps on my hands and arms, which are a bit itchy. I feel that the sunshade is useless at all! It is really impossible to prevent!”

Liu Mingzhu, the chief cosmetic physician of the Department, told the reporter that sunburn dermatitis is related to personal physique. People with weak physique, fair complexion and sensitivity are more likely to be recruited.

The longer you are exposed to the sun, the more serious the allergic reaction will be, and the skin itching will last for 24 to 48 hours, or even longer. To prevent sunburn dermatitis, sunshade is an indispensable sunscreen “weapon”, but if you choose it incorrectly or inappropriately, it will backfire.

you may as well look at the shadow on the ground when you hold a sunshade.

Du Changming, a dermatologist at Nanjing Integrated Traditional Chinese and Western medicine hospital, said that umbrella is the key to measure the effect of ultraviolet protection. Cotton, silk and nylon are not as good as polyester. The umbrella surface fabric should be selected with tight fabric, satin fabric is the best, then twill and plain; The darker the fabric color, the better. The umbrella surface should be large rather than small.

Experts suggest that when picking up an umbrella, you might as well open it to see the shadow on the ground, and the shadow color is darker. Among the sunshades on the market, one is coated with silver glue to block ultraviolet rays. Although the protective effect of the silver glue surface is good, it is easy to turn black after being exposed to the sun. In fact, the silver glue coating inside or outside does not affect the sunscreen effect. It is better to choose the silver glue inside, so it is not easy to fall off.

don’t be greedy for cheap umbrellas. Don’t use them as umbrellas.

Many readers often hear from businesses that sunshades can prevent ultraviolet radiation, and the price is just different brands. Is this reasonable? According to experts, a qualified anti ultraviolet umbrella, even with the most common fabric, costs about 20 yuan. Many cheap umbrellas can only block part of the sun, let alone prevent ultraviolet rays. According to the international standard in “evaluation of ultraviolet protection performance of textiles”, when the UPF (ultraviolet protection coefficient) value of the fabric is greater than 30 and the transmittance is less than 5%, it can be called “ultraviolet protection product”.

Dr. Du Changming especially reminds that rain has corrosive effect on the sunscreen coating. In order to maintain the sunscreen performance of the sunshade, it is best not to use the sunshade to prevent rain. If the umbrella surface is dirty, you can gently brush it with a soft brush tool dipped in water, but you can’t scrub it by hand, and you can’t wash it too often, otherwise the sun protection effect will be affected.