What should I do if I get stung by a big fly and it swells and swells?

The large flies are supposed to be gadflies, a class of insects that resemble large flies and are painful, swollen and swollen after stinging. Therefore, local treatment (squeezing out the toxin blood, rinsing, and applying cold compresses to the area), as well as medication, are needed.
1. Local treatment: Swelling, pain, itching and other problems occurred in the area stung by the big flies, you can squeeze the bite site, the toxin blood extrusion; in the local water, soapy water rinsing, with neutralization of the toxin, to reduce the local redness, swelling, itching symptoms of the efficacy of the same time, while local cold compresses, to reduce the pain and redness of the symptoms.
If the wound is infected at a later stage, surgical incision can be made to drain out the pus and change the medication regularly.
2. Drug treatment: topical drugs such as glycerine lotion, no pole cream for local anti-itch and anti-inflammatory; taking anti-allergic drugs such as cetirizine, loratadine and other drugs. If there is infection, you can take amoxicillin, cefaclor and other antibiotic treatment.
Swelling and swelling under the gadfly sting, the symptoms are serious, should consult a doctor in time, follow the doctor’s prescription medication.