The presence of nodules in the underarms can usually be treated by surgical removal or medication, depending on the situation. Nodules in the armpit are usually paratesticular nodules or sebaceous cysts, and infections in the axillary lymph nodes, of which paratesticular nodules and sebaceous cysts can be surgically excised to remove the excess tissues and restore the normal form and function of the armpit. As the lymph nodes become infected, resulting in the swelling of axillary lymph nodes and the formation of axillary nodes, they need to be treated with medication, and commonly used medications include amoxicillin, cefixime, ribavirin and other medications, which are capable of controlling the bacterial or viral infections and relieving the symptoms. After the appearance of underarm nodules, it is recommended that further examination to clarify the causes of nodules, targeted treatment. In daily life, pay attention to light diet, avoid spicy and stimulating food, appropriate physical exercise, improve resistance, reduce the occurrence of nodules.