Lymph nodes belong to the immune organs of the body, and local or systemic inflammation and other diseases of the immune system can cause swollen lymph nodes. When you have swollen lymph nodes, you should eat light and nutritious food, not spicy and stimulating food, and you can eat more fruits and vegetables, including tomatoes, green vegetables, celery and refined meat, etc. You should not eat fried food, drink less alcohol, and eat less hair products such as onion, ginger and garlic. Lymph nodes belong to the immune organs of the body, and usually swollen lymph nodes are benign diseases, so there is no need to be too nervous. However, swollen lymph nodes in multiple places throughout the body should be considered as other diseases, and a lymph node aspiration biopsy should be performed at the hospital to clarify.