Skin allergy to high temperature

The weather is hot and stuffy in summer, and many people's mood becomes very bad because of this. It also takes a lot of courage to go out in summer. Everyone knows that summer is generally the place where ultraviolet rays are the strongest. If you stay outdoors for a long time, it is easy to cause sunburn. However, some people will experience skin allergies after encountering high temperatures. What are the symptoms of skin allergies due to high temperatures?

Symptoms of summer allergic dermatitis include:

Initially, it presents as relatively dense corn-sized erythema, papules or papule blisters, with obvious itching and accompanied by a burning sensation. Due to the unbearable itching, people scratch and often leave multiple scratch marks and blood scabs, which will leave pigmentation after they disappear.

Why does allergic dermatitis often occur in summer?

Sweating is the main channel for the human body to dissipate heat and excrete in the summer. On hot days, the human body can sweat 3 to 4 liters per hour, and water accounts for 99% of the sweat. Of the remaining 1%, half is inorganic salts represented by sodium and potassium, and the other half is organic matter metabolized by urea, lactic acid, and amino acids. These inorganic salts and organic substances are not substances that normally exist on the skin surface. After the water evaporates, they will remain on the skin. If the amount is large and the time is long, it will irritate the skin and cause skin inflammation.

The following are some daily precautions for allergic dermatitis in summer:

(1) Avoid wearing clothes that are not breathable. It is best to wear clothes made of all-natural materials such as cotton, linen or silk.

(2) Wash the affected area frequently with warm to cool water. Avoid using hot water to relieve itching.

(3) In summer, you should drink more water instead of sugary drinks. Drinking more water can dilute the concentration of chemical components in sweat.

(4) In hot weather, try to stay in a cool and ventilated place as much as possible and avoid going out frequently. When going out, it is best to use a black parasol to block the sun, whether it is cloudy or sunny, because black can absorb ultraviolet rays of various wavelengths to block the damage of ultraviolet rays to the skin.

(5) In hot and humid seasons, you can use air conditioning to dehumidify to prevent excessive sweating.

To sum up, summer allergic dermatitis is caused by sweating in summer, and people with sensitive skin will suffer from allergic dermatitis because of this. Therefore, in summer we should clean our sweat regularly to avoid skin irritation.