Swollen lymph nodes behind the ear are most often the result of inflammatory infections and should be sought out as the primary focus of infection and actively treated with intravenous anti-infection therapy. During the treatment and recovery period, local iodophor or saline scrubbing can also be chosen to relieve the patient of pain and discomfort. If necessary, local lymph node excision biopsy or puncture biopsy can be performed to further clarify the pathological type, and targeted intravenous chemotherapy or radiation therapy can be selected according to the results, which can control the development rate of tumor cells to a certain extent. During the treatment period, attention should also be paid to increase dietary nutrition and enhance physical fitness, because there are many patients who are prone to low body immunity during the treatment period, which may even induce serious infections and other complications as well.