Eating stimulating foods and swelling of submandibular lymph nodes may be related to lymph node infection, influence of peripheral lesions and malignant diseases. 1. Lymph node infection: when submandibular lymph nodes have acute or chronic suppurative infection, it will lead to swelling of lymph nodes, mostly due to bacterial or viral infection. Eating irritating food easily leads to inflammation in the throat area, which leads to the enlargement of submandibular lymph nodes. 2. Influence of peripheral lesions: When inflammation occurs in the remote area, it will also affect the blood circulation of lymph nodes, which will also lead to enlargement, which may be related to gingivitis, otitis media, radiculitis, tonsillitis and other diseases. 3. Malignant diseases: malignant tumors of the maxillofacial region, lymphoma or leukemia, etc., also have this manifestation. However, it has little to do with whether or not you eat stimulating food. Eating stimulating food causes submandibular lymph node enlargement, you should go to the hospital in time, and follow the doctor’s instructions for treatment.