If the mass is small and painless with good mobility and clear borders, it may be a normal lymph node and does not require treatment. If the mass has pain and the mass is swollen, it may be inflammation of the lymph nodes and needs oral antibiotic treatment. Such as cefixime or cefradine, the swollen lymph nodes can subside and the pain can be relieved in about 7-10 days of treatment. If the mass is formed by a sebaceous cyst, it is usually hard in texture, with small black dots or black heads on the surface of the cyst and a tofu-like substance inside the opening of the sebaceous gland, which is mainly a substance secreted by the sebaceous gland. After the diagnosis is clear, surgical removal is recommended because sebaceous cysts may become infected over time and form abscesses.