Acari, also known as ticks, grass swallows, cattle ticks and so on. , dormant in shallow hills of grass and plants, or stay in the fur of animals such as livestock. The body of ticks is generally reddish brown or grayish brown, and there are soft ticks and hard ticks. There is an obvious difference between soft ticks and hard ticks, that is, hard ticks have a big blood sucking mouth, which is easy to get into the meat when sucking blood, while soft ticks will automatically fall off after sucking blood, and may fall off to the ground before people find them. Ixodes are smaller than soft ticks, but they bring more fear than soft ticks and hard ticks. In the process of sucking blood, they bury their whole heads in the meat. Removing them manually is not an easy task. Improper operation will lead to the broken skin of the artificial head of Ixodes.

After ticks bite people, neurotoxins in their saliva will lead to ticks paralysis, which is characterized by acute ascending paralysis, and severe cases can die of respiratory failure. There is also an α -galactose in the saliva of ticks. After a person is bitten, α -galactose will enter the blood with saliva and be "recorded" by the human immune system, leading to a serious allergic reaction, that is, red meat allergy.

In addition to saliva toxin, the harm of ticks also comes from the virus they carry. The most famous case of tick diseases is fever with thrombocytopenia syndrome. At present, most of the reported tick deaths in China are caused by this disease. It is an acute infectious disease caused by Bunia virus, and its clinical manifestations are characterized by fever with thrombocytopenia. A few patients are seriously ill and develop rapidly, and may die of multiple organ failure. There are three transmission types of Bunia virus: mosquito vector, tick vector and sandfly vector, so you should be extra careful to prevent mosquito vector, tick vector and sandfly (it is recommended to use some professional anti-tick agents).

It is reported that ticks carry at least 83 kinds of viruses, which can cause forest encephalitis, Xinjiang hemorrhagic fever, tick-borne relapsing fever, Lyme disease, Q fever, rickettsia transmitted by ticks in North Asia and many other viral diseases. Ticks are temporary parasites on the surface of many vertebrates. If ticks used to parasitize rodents such as mice before biting people and animals, they may also spread some bacterial diseases, such as plague, brucellosis and hare fever.

If you find yourself bitten by a tick, you must calm down first and don't take it off in a hurry. Many patients' first reaction after being bitten is to scrape the tick off by themselves, which increases the difficulty for doctors to judge the bite, because even if the insect body is scraped off, the fake head of the tick may still remain in the skin, and some patients suffer from foreign body granuloma and long-term skin itching because of the fake head of the tick in the body. Some people will burn ticks with cigarette butts and try to burn them to death at high temperature, which is very undesirable. This will only stimulate ticks to penetrate the prosthetic head deeper into the skin and release more toxins.

The correct treatment method is to use oil substances, such as natural plant essential oil, sesame oil and peanut oil at home, or wrap ticks with glycerin and vaseline to suffocate them, and then find a professional doctor to take out ticks with medical equipment for follow-up treatment. So it's important to stay calm after being bitten by a tick. Don't panic, and deal with it yourself.