Treatments for canker sores on the neck include systemic treatment with antibiotics such as penicillin. It can also be treated locally by local incision and drainage. 1. Systemic treatment: for the disease of neck canker sores, when the appearance of neck canker sores, a large number of antibiotics should be quickly used for anti-infection treatment, such as cefixime, roxithromycin, etc., which can effectively control the patient’s condition and reduce the impact of the disease on the patient’s body. 2. Local treatment: the affected area can be cleaned and sterilized with iodine volts first, and then treated with mupirocin ointment or erythromycin ointment externally. If there is swelling, ulcers and other symptoms, you should go to the outpatient surgery or dermatology department of the hospital, under the guidance of the doctor for incision and drainage for treatment. Patients should seek medical attention as soon as possible if they experience uncomfortable symptoms, and choose the appropriate treatment under the guidance of the doctor to avoid delays.