When the gadfly bites, its skin hurts and it will bleed. Then there are erythema papules and wheals, which are itchy and painful. After being bitten by a cockroach, you can apply refreshing antipruritic agents and corticosteroids to the injured skin, such as Piyanping, Wuji ointment, and Fusong. Those with severe itching and pain can take chlorpheniramine, cetirizine hydrochloride and other antihistamines 1 ~ 2 tablets/time, 2 ~ 3 times a day; Or prednisone 1.5 ~ 30 mg, 1 time, 2 ~ 3 days. If there is erosion and exudation, local cold compress and wet compress can be applied, and some zinc oxide oil can also be applied.

[Edit this paragraph] Medicinal value

The product has the functions of removing blood stasis, resolving hard mass and dredging menstruation. It is suitable for amenorrhea caused by blood stasis, abdominal mass accumulation, traumatic injury and blood stasis block, and is one of the commonly used Chinese herbal medicines. Due to the scarcity of goods, the market has been relatively tight.

In places where livestock gather, when the scale flies fall on the livestock to suck blood, pat them gently with a big fly swatter (be careful not to use too much force to avoid breaking the insects). Catch the tabanus, dig its head to death or scald it with boiling water, soak it clean, and set it up with thread to dry it in the sun or in the shade. Stir-fry with slow fire and remove the wings to get the gadfly.