Rhinitis that is caused by allergies does not usually cause swollen lymph nodes. Rhinitis caused by pathogens such as viral, bacterial or fungal infections, on the other hand, may cause swelling of the surrounding lymph nodes. Allergic rhinitis is generally an allergic reaction caused by the mucous membranes in the nasal cavity coming into contact with allergenic components, such as pollen and dust. Allergic rhinitis mostly leads to edema, pain and tissue fluid accumulation in the local mucous membranes of the nasal cavity, but does not cause swelling of the surrounding lymph nodes. If the rhinitis itself is caused by a viral, fungal or bacterial infection, the surrounding lymph nodes may become enlarged as a result of infection stimulation. Nasal tissues are located adjacent to the lymph nodes of the head and neck, and the lymph nodes of the head and neck are more abundantly distributed, so when symptoms of acute inflammation or infection occur, the peripheral lymph nodes may become enlarged secondary to the infection. When the head and neck lymph nodes are found to be enlarged, one should actively consult a doctor for a systematic examination to find out whether it is related to rhinitis.