The high temperature and scorching sun in midsummer have made you "how ripe" are you?
After being exposed to the sun for a long time, I returned indoors and turned on the air conditioner. My body no longer felt hot, but my face and arms were still burning. This is sunburn.
There are three stages of skin sunburn:
- In the early stage, the skin becomes red and hot; in the middle stage, the skin has burning and tingling sensations, and the feeling of tightness due to lack of water is more obvious; in the late stage, some people peel off immediately after sunburn, and some people also peel after the early stage. , slowly peeling off after the mid-term.
What should I do if I get sunburn?
After going out and getting sunburned, the first thing we do when we get home is to use a cold wet towel to apply cold compresses to the sunburned skin. If the sunburn is large, you can use a gentle cold shower or a cold bath in a bathtub, but cold baths are not acceptable to everyone.
Sunburn will seriously damage the skin barrier and greatly increase the water loss of the skin. Although this water loss is invisible to the naked eye, you should still increase rehydration after sunburn, and drinking boiled water is especially recommended. Most of the moisture in human skin comes from drinking water and food, so drinking more water can effectively replenish the water lost in sunburned skin and accelerate the repair of sunburned skin.
For sunburned skin, you can use corresponding topical drugs and products to relieve discomfort. The first choice is various hypoallergenic moisturizing creams , followed by various aloe vera gel and calamine lotions.
Take precautions before they happen. Skin sunburn can be prevented:
Avoid exposure to the hot sun, hold an umbrella when going out, wear a wide-brimmed hat, and wear long-sleeved clothes. It is best to wear dark clothes, because ultraviolet rays can penetrate light-colored clothes more easily. , apply sunscreen on face and exposed parts.
The time for outdoor activities in summer should not be too long. The initial exposure to sunlight in the clear sky at noon in summer should not exceed 30 minutes, even for people with light skin. Special attention should be paid to protection when swimming outdoors.
In temperate areas, the wavelength rays that cause sunburn before 10 a.m. and after 3 p.m. are usually filtered out. Dense fog does not reduce the danger, but it increases at high altitudes.
The sun protection index (SPF) of sunscreen is not as high as possible:
- Choose SPF 15~25 on cloudy days or when doing activities in the shade of trees;
- Choose SPF 25~30 for activities directly in the sun;
- Go to the beach, plateau, For snowy mountains, etc., it is recommended to choose SPF50.
If you sweat a lot in summer or have to play in the water, you should choose waterproof and sweat-resistant sunscreen products. A 1-cent coin-sized amount of sunscreen should be applied. It is best to apply it within half an hour before going out. If you continue to be outdoors, you should reapply it every two or three hours.
