How to deal with being bitten by a concealed wing bug? How to prevent it? What should I do if I encounter a cryptopterus?

August to September every year is the breeding period of Staphylinus, and it is also the peak of the incidence of Staphylinus dermatitis. Many people can't bear to disturb it, so how to deal with being bitten by Staphylinus? How to prevent it? What should I do if I encounter a cryptopterus?

1. What to do after being bitten by a hidden-wing insect?

After being crawled by a cryptopterus, be sure to keep the affected area clean and generally heal automatically. However, in order to speed up recovery, prevent skin infection, or reduce itching pain, patients should immediately go to the dermatology department of an authoritative hospital. Generally, doctors will prescribe external medicine to smear the affected area. It will be all right in about two weeks.

After human skin comes into contact with a small amount of venom (such as Staphylinus crawling over the skin), the skin will appear dotted, flaky or striped erythema, followed by grayish brown necrosis in the center. If the injury area is small, there will be slight itching and pain; if the injury area is large (such as the skin is crawled by cryptopterus), there will be strong itching and pain, which may be accompanied by enlarged lymph nodes, fever and so on.

If the human skin comes into contact with a large amount of venom (such as venom flows to the skin), the injured area will produce blisters, the surrounding skin will be red and swollen, and the blister and swelling will be a ring of the original skin color. Blisters can be broken, such as with cotton swabs and then washed with salt water, but will soon re-produce blisters. Soon after the blisters disappear naturally, the affected area will bulge and the original blisters in the middle will be sunken, like a crater, but the crater is generally round and the affected area on the skin is linear. The skin tissue of the affected part of the bulge will all die, forming a dark coffee scar, and new skin will grow under the scar, but the color of the new skin is very light, which is different from the surrounding skin, resulting in the appearance of healing after being cut by a knife. Therefore, the scar left has the greatest impact on the skin.

2. How to prevent Staphylinus

1. Clean indoor and outdoor hygiene to prevent mosquito breeding, and close screen windows at the same time

two。 Turn off the lights and go to bed at night. Check if there are any Staphylinus on the bed before you go to bed to avoid being crushed to death.

3. Try to take various mosquito repellent measures, such as ordering mosquito repellent, wiping toilet water, etc.

4. If Staphylinus stays on the skin, blow it away by mouth, then rinse the skin in contact with clean water.

5. Generally speaking, Staphylinus is less in urban areas, but more in rural areas and forests. Pay special attention to when traveling, try to wear trousers, take toilet water and other mosquito repellent products.

Third, what should we do when we encounter a cryptopterus?

Ms. Qian said that when she got up in the morning three days ago, she felt a little itchy on her face. As soon as she looked in the mirror, she saw a lot of small red spots on her face. "it looks like she was bitten by a mosquito, but it hurts to scratch with her hands." Ms. Qian wanted to rub it with some anti-itching ointment, but the situation was not what she had imagined. "later, the erythema enlarged and began to fester, so I hurried to the hospital to have a look." Ms. Qian said that when she went to the dermatology department of the hospital, she found that there were four or five patients in the waiting room with the same symptoms as her. Finally, after examination by the hospital, they found out that they had been bitten by a poisonous hidden-wing bug.

Ms. Qian recalled that she went for a walk in the woods of the community after dinner four days ago and took a rest on the lawn. "it just so happens that the doctor also said that Staphylinus was usually in the grass. I'm sure that's when I was bitten."

1. Don't sit on the lawn.

Experts from the Chongqing Centers for Disease Control and Prevention also reminded citizens not to sit on the lawn in the suburbs, because in addition to poisonous hidden-wing insects, they will also be infested by poisonous caterpillars.

According to reports, Staphylinus mainly lives in the grass near the water in the fields and flies indoors at night in case of high temperature. The greatest harm of Staphylinus is to cause extensive dermatitis or rash. People who have been bitten have a large area of red and swollen skin or even fester and suppuration, itching and pain. If you find a poisonous cryptopterus crawling on your body, do not pat or rub it with your hands. You should gently blow it off or use something else to remove the bug.

Like Staphylinus, poisonous caterpillars can cause dermatitis or rash. Poisonous caterpillars mainly grow on mulberry, pine, tea and other trees. The poisonous needles on the skin it takes off can cause dermatitis and urticaria when they are attached to the human body or clothes in the wind. If you want to play in the woods during the holidays, people should wear long-sleeved pants, tighten their legs and cuffs, put on hats and wrap towels around their necks.

two。 Don't pat directly with your hands when you encounter a cryptopterus.

"if you don't hurt it, it won't hurt you." According to relevant experts, only a few species of Staphylinus have "poison", that is, Staphylinidae and a small number of species. However, Staphylinus does not "sting". The reason for their skin allergy and poisoning is that there is "Staphylintin" in the body of Staphylinus, which is strongly acidic and exists in the body of Staphylinus and belongs to their defense mechanism. The toxin overflows only when its body is destroyed.

"Don't pat it directly with your hands when you encounter a cryptopterus." Zeng Xiaoxing explained that although Staphylinus has no venomous glands outside the body and will not sting, there is venom in the body, which will flow out after being killed. Once the toxin enters the body, it will cause an allergic reaction to the skin, resulting in striped or spotted redness and swelling. generally speaking, this symptom will disappear in about a week without sequelae. Therefore, as the Weibo said, "if you have this bug on your body, just blow it away gently with your mouth and never hit it with your hands." There is still a certain scientific basis.

Mo Jianchu said that if the adult of Staphylinus is broken and its venom touches human skin, it will indeed cause redness and swelling of the human skin. In severe cases, when the skin is damaged, festering may occur. "but it is incorrect to say that the cryptopterus is life-threatening. Only a very small number of people with allergies may be life-threatening due to severe allergies after exposure to the worm. Generally speaking, this bug does not cause death. "

Fourth, how to prevent the injury of Pteropterus

Zeng Xiaoxing said that compared with the bag bitten by mosquitoes, the bag bitten by a poisonous hidden-wing bug can be said to be "spicy and painful." If you accidentally come into contact with its body fluids, alkaline substances such as soapy water and soda water can be neutralized, and calamine lotion can be smeared after rinsing with clean water. if serious, you should go to the regular hospital for treatment as soon as possible to avoid causing more serious skin infections.

How to prevent the damage caused by poison hidden-wing insects, experts warn: close the doors and windows when sleeping in summer. If there is a screen window to be as strict as possible, the screen window eye thick hidden wing worm can enter the house from the screen window gap, so the window must be closed.

Be sure to turn off the lights and go to bed. Because Staphylinus has a strong phototropism, after entering the house, try to turn on the light as little as possible, or put a basin of salt water under the lamp to make use of its phototaxis to kill it. In addition, before turning off the lights and going to bed, check if there are any Staphylinus on the bed.

Take various mosquito repellent measures. Deltamethrin or Fenna insecticides can be prepared at home to spray and kill insects in the indoor and surrounding environment. When you leave home, you can spray insecticide in the house to kill the cryptopterus that enter the house.

Take the essence of wind oil with you. Staphylinus will die immediately when it encounters wind oil essence, even if 3 drops of wind oil essence is added to 500ml water, it will be killed in a minute and a half.

Keep the outside clean and tidy. It is necessary to remove rotten wood, waste, and weeds on all sides of the house in time, so that there are no breeding places and habitats for Staphylinus.

"if members of the public visit the suburbs, they should make the necessary protection and wear long-sleeved pants as far as possible. They can also spray some mosquito repellent to prevent the bite of Staphylinus." Zeng Xiaoxing stressed.

Every year, July and August is the active period of Staphylinus. After the ambush, the weather will become more and more stuffy, as if in a big steamer. This is also the most difficult period in summer, and it is also a period of high incidence of injury caused by Staphylinus. Recently, there are more thunderstorms, and stagnant water after rain is easy to breed mosquitoes. Experts remind families with children to pay more attention to mosquito prevention. In addition to choosing anti-mosquito bites, such as toilet water and mosquito nets, be careful not to stay in the grass for a long time, especially not to sit on the lawn after the rain.

5. treatment of cryptopterus dermatitis

1. Systemic therapy

(1) take antihistamines orally for mild patients, such as cyproheptadine 2mg 3 times a day for 3-5 days.

(2) patients with severe illness should take glucocorticoid preparations, such as prednisone l0mg, twice a day for 3 to 5 days.

(3) the skin lesions or secondary infection should be added with antibiotics, such as erythromycin ethyl succinate, 0.25 grams each time, 4 times a day for 3 days.

two。 Local therapy

(1) Wet compress: choose 5% sodium bicarbonate solution or 1Rue 8000 potassium permanganate solution wet compress, 15 minutes each time, 2 times 3 times a day

(2) Nantong Snake tablets: mix powder with vinegar or cold boiled water into paste for external use, 2-3 times a day

(3) chloramphenicol calamine lotion: for external use, 3-5 times a day.