Cervical lymphadenitis usually refers to inflammation of the lymph nodes in the neck, and the severity of the disease depends on the cause. Cervical lymphadenitis caused by viral or bacterial invasion is usually of lower severity, while cervical lymphadenitis caused by metastatic tumor disease is usually more serious. Cervical lymphadenitis is usually caused by viral and bacterial infections, and is usually of low severity and can be relieved by general treatment and medication. Patients can usually follow the doctor’s instructions to use penicillin sodium injection, roxithromycin capsules and other anti-infection treatment, while increasing rest, maintaining a light diet, and more water intake. However, thyroid cancer, lymphoma and other tumors with lymph node metastasis may also lead to cervical lymphadenitis, in which the condition is usually more serious, and the patient may suffer from fever, coughing up sputum, difficulty in breathing and other symptoms, which may be life-threatening in severe cases. Usually, it is necessary to follow the doctor’s instructions to carry out anti-infection treatment and actively deal with the primary lesions. It is recommended that patients with cervical lymphadenitis seek medical attention in a timely manner to investigate the cause of the disease, and under the guidance of a professional doctor to carry out the appropriate treatment, so as to avoid delays in the condition.