How to Treat Swollen Lymph Nodes in Neck Naturally: Swollen lymph nodes in the neck can be a sign of infection or inflammation in the body. To treat them naturally, start by getting plenty of rest and drinking lots of fluids. Eating a healthy diet rich in fruits, vegetables, and lean protein can also help to support the immune system. Applying a warm compress to the affected area can help to reduce inflammation and provide some relief. Finally, try incorporating natural remedies like