What is this little black bug that bites and sucks blood?

What is a little black bug that bites and sucks blood?

1, this is the famous blood-sucking insect-midges, also known as bite, ink mosquito, chaff mosquito and so on.

2. Being small is harmful to human beings, which is a major feature of midges. In China, midges are distributed all over the country except in the northeast, but they are especially abundant in the forest areas and grasslands in the northeast.

3. There are more than 1000 species of blood-sucking midges in the world, and there are about 150 species in China. Although they are small and not good at flying, they suck blood fiercely.

4, because it breeds a lot, often bites people in groups, and it is silent, so you can't prevent it. After biting, you will never spill your mouth without filling your stomach.

5. Because the acidic liquid secreted by it is extremely irritating, it is even more painful for some people who are allergic to it, especially women, children and non-local residents. Often caused by scratching the skin infection, forming ulcers, redness, mobility is very inconvenient. Midges can also spread many human and animal diseases.

Treatment and measures of biting by midges;

1, immediate measures When bitten by midges, immediately apply alkaline solutions such as sodium bicarbonate solution or ammonia water, which can greatly reduce the degree of local reaction.

2. Various antipruritics, such as camphor, menthol, carbolic acid ethanol solution or lotion, can be used for external use in acute and subacute phases; 1% mint calamine lotion is also acceptable. When a lot of people are bitten, they can be soaked in hot water. Those with blisters can apply 2% methyl violet solution to prevent secondary infection. When there is secondary infection, dandelion and chrysanthemum indicum can be applied externally.

3. Chronic stage is difficult to treat, and surgical resection, X-ray irradiation, electrocautery, laser and freezing can be used. Triamcinolone acetonide can also be injected into nodular lesions, 1 time for one week, usually 2~4 times to cure. Satisfactory results can also be achieved by external application of Fujining ointment or Piyanling ointment.

4, oral drugs Some patients with obvious symptoms after being bitten are caused by skin sensitivity, and you can take anti-allergic drugs. For patients with large skin lesions, antihistamines can be taken orally; For acute phase, especially vascular edema, oral prednisone is effective, and the symptoms are quickly eliminated within 1 day and night. For systemic chronic patients, thalidomide can be taken orally, and for recurrent patients, artificial immunotherapy can be used for desensitization treatment. Antibiotics can be used for secondary infections.

Prevention and control of midges:

1, there are many species and large quantities of midges, and it is difficult to completely eliminate and control their breeding environment.

2, therefore, in the prevention and control measures, must be combined with the actual situation and specific conditions for comprehensive prevention and control.

3. Better control effect can be achieved by improving environmental sanitation, eliminating breeding conditions, eliminating breeding places of midges and killing adult midges and larvae by physical or chemical control methods.

4. Apply all kinds of mosquito repellent to repel midges, so that they dare not approach.

5. Anti-mosquito caps and mosquito nets can effectively prevent mosquito bites, but they cannot prevent smaller midges from entering and leaving freely. If you want to use this method to prevent midges, it is only effective to reduce the diameter of yarn mesh to less than 0.75 mm