Huh? How can someone be allergic to their own sweat?

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There is a common skin disease that causes rashes all over the body as soon as you exercise, sweat, or come into contact with cold air, just like big mosquito bites, accompanied by obvious itching. This is today's protagonist - urticaria .

Mr. Chen (pseudonym) was also like this. Whenever he sweated, he would get red raised patches on his body. The itching was unbearable, so he went to the dermatology department of Beichen Hospital for treatment. It turned out that he also had urticaria.

Annoying urticaria

Urticaria is the appearance of red raised patches on the skin, accompanied by itching. Urticaria often appears suddenly and disappears on its own within a few hours. Common manifestations of urticaria are "wheals" and "wind bumps", but swelling of the subcutaneous tissue deep in the dermis is manifested as " angioedema ", which is a common but critical manifestation of urticaria .
If edema affects the respiratory tract or digestive tract, chest tightness, laryngeal edema, abdominal pain and diarrhea may occur, or even severe allergic reaction - anaphylactic shock, which may be fatal . You need to seek medical attention and intervene promptly.

Many people have never had urticaria, but after eating certain seafood or wearing clothes made of certain fabrics, they will have sudden systemic urticaria. This situation is acute urticaria. Common triggers include food, drugs, contact objects, and infections that can all induce urticaria .

If the recurrence time exceeds six weeks, it may be diagnosed as chronic urticaria , but chronic urticaria will recur and last for weeks or even months or years. Depending on the inducing factors, chronic urticaria is divided into spontaneous urticaria and induced urticaria.

Chronic spontaneous urticaria is related to the mechanism of immune disorder, while induced urticaria is significantly related to external factors: including artificial urticaria (skin scratching), cold contact urticaria (cold urticaria), heat contact urticaria (heat urticaria), solar urticaria, etc.

If you suddenly develop a lot of itchy rashes like mosquito bites, you should suspect that it is an urticaria attack. Its characteristic is that it usually disappears on its own within a day without leaving any traces, but it will recur repeatedly.

If it is acute urticaria, after finding out the triggering factors, avoid contact with allergens or stop eating allergic foods, etc.; if it is chronic urticaria, it is recommended to go to the hospital for diagnosis, evaluation and treatment.
If you experience chest tightness, laryngeal edema, and severe general discomfort, go to the hospital immediately for timely treatment!

01 Stay away from inducing factors, such as avoid exposure to the sun, do not wash with too hot water, wear loose and comfortable clothes, maintain adequate sleep, and strengthen physical exercise.

02If your condition recurs or worsens after eating certain foods, you can keep a food diary to avoid allergens.

03 Prevent insects and mites, avoid contact with pollen substances, and avoid activities under trees, grass, etc. Regardless of the situation, it is recommended that patients go to a regular hospital for examination and receive treatment under the guidance of a doctor.