Wasp bites can become infected. Wasp bites should be cleaned and disinfected, topical medication applied, and surgical treatment if necessary. 1. Cleaning and sterilizing: After being bitten by wasps, no matter serious or not, preliminary treatment is needed, otherwise it is easy to be infected. First of all, pull out the chelidonium needles left in the skin and wash with weak acidic solution and apply iodine povidone to disinfect, and then judge whether it is necessary to consult a doctor for further treatment according to the severity. 2. Local medication: after being bitten by wasps, local redness, swelling, itching, stinging and other symptoms will appear, you should go to the hospital in time, and apply erythromycin cream and other drugs under the guidance of the doctor. 3. Surgical treatment: If the bitten area is large and serious, with abscesses, oozing and other phenomena, this time the need for surgical incision and drainage, and also need to lose cephalosporin anti-inflammatory drugs to alleviate the symptoms after the operation. It is recommended to actively seek medical advice and follow the doctor’s instructions for medication and treatment.