Guangzhou Daily News (All Media Reporter Wu Wanhong Correspondent Yang Shangshang) Recently, Miss Zeng (pseudonym) in her thirties spent a day by the lake for vacation travel, and that night began to feel a little red and itchy skin on her face and arms. The next day, a rash and several small blisters appeared on the face and upper limbs, and the itching increased. When I went to the Guangzhou Dermatology Clinic, I found out that it was sunburn.
Zhong Jinbao, director of the Department of Traditional Chinese Medicine of the Guangzhou Dermatology Institute, reminded that many people feel that the sunshine in spring is mild and comfortable, but they do not know that spring, especially late spring and early summer, is the high incidence period of solar dermatitis, so special attention should be paid to sun protection, and some environments are relatively empty. In places such as the seaside, lakeside, sand pond, etc., the ultraviolet rays are more intense, and there are many foods such as toon, locust, mango, pineapple, etc. that are "photosensitive foods" at this time. If you plan to go out for camping or Barbecue, we should pay attention to avoid eating these foods.
Don't forget sunscreen when you go out for an outing
"At about this time every year, many patients with solar dermatitis come to the skin clinic to report," Zhong Jinbao said. The pathogenesis of phototoxicity is related to the release of various inflammatory mediators from dermal cells after excessive ultraviolet irradiation, causing a series of allergic reactions.
Sunburned skin will have well-defined erythema. Mild sunburn will manifest as redness and itching, and in severe cases, blisters and edema will appear. After that, the sunburned spot will fade and darken, and it will scale and may have pigment. calm.
Therefore, if your skin becomes red and itchy after prolonged exposure to the sun, you should pay attention to whether it is sunburned, and pay attention to sun protection.
Liang Fengxing, an attending TCM physician in the Department of Traditional Chinese Medicine of Guangzhou Dermatology Prevention and Control Institute, pointed out that because Ms. Zeng was outdoors for a long time during the outing, the sun was also strong that day, and near the lake, the ultraviolet rays were relatively strong, and she did not do any physical sunscreen at that time, nor did she apply sunscreen. Frost.
The patient was taking anti-allergic drugs, external application of desonide cream and diphenhydramine cream, and oral administration of traditional Chinese medicines such as expelling wind and itching, strengthening spleen and eliminating dampness. The sunburn occurred again during the treatment, after which the symptoms gradually improved.
Liang Fengxing said that there are several reasons why solar dermatitis is more common in late spring and early summer: 1. When the temperature in spring is not high, people tend to ignore the still relatively high ultraviolet intensity; Relatively high; 3. Spring is just right, everyone thinks of outdoor activities, but the awareness of sun protection is not very strong.
The combination of various factors can easily cause sunburn.
Liang Fengxing introduced that solar dermatitis is more common in children, women, and people who travel near the equator or at high altitudes.
In places such as snow-capped mountains, seasides, beaches, and lakes, ultraviolet rays will also be aggravated by reflection. Before traveling, everyone must take sunscreen measures.
Is your sunscreen correct?
Now that it's the season of the most sunburn, should you put on the highest level of sunscreen?
the answer is negative.
Liang Fengxing suggested that people who often stay indoors in late spring and early summer should choose SPF15/PA+ sunscreen. If they want to go outdoors, they can choose SPF25/PA++ sunscreen.
If you don’t sweat much indoors, it is enough to apply sunscreen once a day; if you are going to be outdoors for a long time, it is recommended to apply sunscreen 30 minutes before going out, reapply before going out, and then reapply every 1-2 hours.
After all, the higher the level of sun protection, the more viscous the texture of the sunscreen may be, which will increase the burden on the skin prone to allergies.
Before buying a sunscreen product, pay attention to test whether it is suitable for your skin type and whether it will cause allergies.
The specific method is to try rubbing on the elbows and behind the ears. The test time is suitable for 24 hours, because some allergic symptoms are delayed.
People who are allergic to sunscreen products are recommended to use physical shielding from sunscreen, such as wide-brimmed hats, thin long-sleeved shirts, and summer scarves.
After prolonged exposure to the sun outdoors, if the skin has irritation and burning sensation, it is recommended to take some moisturizing and hydrating after-sun remedies, such as rinsing the skin with water, applying a hydrating mask, and using after-sun repair products such as aloe vera gel or mung bean Mud etc.
In addition, you can also eat more fruits, and pay attention to avoiding foods that are prone to allergies such as leeks, seafood, beef and mutton, spicy foods, tobacco and alcohol.
Eat these foods with caution at a spring picnic
Liang Fengxing reminded that there are many seasonal foods in spring, such as coriander, toon, locust flower, pineapple, mango, etc., which are all "photosensitive foods". After eating them, they are more likely to cause severe sunburn.
Be careful to avoid these common "photosensitive foods" at outdoor picnics:
Vegetables and fruits: such as locust flower, vetch, snow cabbage, gray cabbage, lettuce, fennel, amaranth, shepherd's purse, celery, radish leaves, spinach, buckwheat, coriander, safflower, rapeseed, mustard greens, figs, citrus, lemon, mango , pineapple, etc.;
Seafood: snails, shrimps, crabs, mussels, etc.
Liang Fengxing recommends that you can eat some foods rich in natural antioxidants after sun exposure, such as tomatoes, nuts, green tea, etc., which can help improve the skin barrier and reduce sunburn and tanning.
At the same time, after sun exposure, you can use Ophiopogon japonicus, Polygonatum japonica and other heat-clearing soups to make soup to drink, replenishing water and nourishing yin and lungs.
In addition, if you take photosensitizing drugs, such as sulfa, chlorpromazine, griseofulvin, etc., you should also avoid prolonged exposure to the sun.