After being bitten by fire ants, alkaline solution can be used to apply wet compresses locally, and if obvious allergic reaction occurs, consult a doctor promptly. The secretion of fire ants is acidic, after being bitten by fire ants, alkaline solution can be used to neutralize the local wet compresses, which can reduce the allergic reaction, commonly used 5% to 10% sodium bicarbonate solution or soapy water, 10% ammonia, etc., and at the same time, you can also orally take loratadine, ibrastine and other anti-allergic drugs to deal with. For people with severe localized allergic reactions, or even respiratory distress and shock, prompt medical attention is needed, and such patients may need to be treated with glucocorticoids, epinephrine, and other medications. After being bitten by fire ants, there will be obvious redness, swelling and pain in the local area, and it is recommended to seek medical treatment in time.