Gums swelling and pain after the release of nerve killing drugs may be caused by too much drug, drug exposure, gingivitis, etc., which can be treated by reducing the amount of drug, removing the drug, and taking anti-inflammatory and analgesic drugs orally. 1. Too much medicine: when the patient appeared to kill the nerve after the release of gum swelling and pain, may be in the process of treatment with too much medicine, the amount of medicine will stimulate the gums around the tissue caused by swelling, resulting in the phenomenon of swollen gums and pain. The symptoms can be relieved by reducing the amount of medication and using the proper medication. 2. Drug exposure: If the drug leaks out during the treatment process, it may have a corrosive effect on the gums, thus causing the phenomenon of swollen and painful gums after killing the nerve and releasing the drug. Patients can remove the drug in a timely manner, and then rinse the gums on the way to relieve the pain. 3. Gingivitis: gingivitis patients in the inflammatory stimulation may also appear after the phenomenon of killing nerve drug gingival pain, you can take anti-inflammatory and analgesic drugs, such as indomethacin tablets, amoxicillin enteric-coated tablets, etc., allergic to the drug components, asthma patients, angioneurotic edema patients are prohibited. In the case of patients appearing to kill the nerve after the release of gum swelling and pain, it is recommended to consult a doctor in a timely manner to identify the cause of the disease, follow the doctor’s instructions for the use of medication, do not use drugs privately, so as not to aggravate the condition.