Chronic lymph node enlargement is most often caused by chronic inflammatory irritation. The most common is chronic pharyngitis or chronic tonsillitis, which leads to chronic enlargement of the lymph nodes in the lower jaw or neck. Once the inflammation is controlled, the lymph nodes will gradually decrease in size or will not become enlarged and painful. Usually if chronic pharyngitis is caused, the most common is long-term talking or singing, using the vocal cords more people are more common. This situation should avoid triggers, avoid talking, singing, using the vocal cords so much, the inflammation will naturally be controlled. You can also take oral Chinese medicine or proprietary Chinese medicine to treat chronic laryngitis or tonsillitis. The common ones are slow lymphatic capsule or slow lymphatic punch which are more effective. In addition, if the primary lymph nodes are enlarged and there is chronic pain, you can also take oral Chinese medicine or proprietary Chinese medicine such as Xiao Jin Wan, which has the effect of activating blood circulation and eliminating stasis and dispersing nodules, which is more effective for this kind of primary lymph node enlargement of unknown origin.