The first thing you should do after being stung by a hornet is to observe whether there is a poisonous stinger at the sting site, if there is one, you can use a needle or tweezers to pick out or pull out the stinger, while not directly squeezing the wound to avoid the spread of venom, you can immediately bandage the proximal end of the stung limb and flush the wound to avoid allergic reactions, glomerular damage and other systemic reactions caused by toxins. This helps patients to quickly remove local toxins and reduce toxin absorption. 2. Medication: Topical application of mupirocin ointment, dampicol ointment, compound dexamethasone acetate cream and other medications can also help to quickly reduce swelling and relieve pain. If there are allergy symptoms, you can also take oral anti-allergy drugs such as Benadryl and chlorpheniramine maleate tablets for treatment. In addition, patients should pay attention to protect the wound to avoid infection. If the symptoms are not relieved after the above treatment or appear to be continuously aggravated, such as dyspnea, coarse wheezing, dizziness, palpitations, nausea, vomiting, etc., it is recommended to go to the hospital promptly for active treatment by intramuscular and intravenous medication.