Milky nodules in the lungs usually require treatment. Possible causes of pulmonary cornu nodules include tuberculosis, lung cancer, and Aspergillus infections, which need to be treated according to the cause. Acute cornual tuberculosis is a kind of blood-borne tuberculosis, which is often more serious and needs regular anti-tuberculosis treatment, and anti-tuberculosis drugs include isoniazid and rifampicin. If it is caused by lung cancer, it may be an extrapulmonary tumor with intrapulmonary metastasis, resulting in scattered granular foci in both lungs, which requires chemotherapy, radiotherapy, targeted therapy and so on. Corn nodules may also be caused by Aspergillus infection, and therefore require regular antifungal treatment, commonly used drugs such as voriconazole. Most of the diseases that cause granulomatous nodules cannot be cured on their own, and such diseases are relatively more serious. If patients find granulomatous nodules in their lungs, it is recommended that they consult a doctor in a timely manner and treat them aggressively, or else they may cause further aggravation of their condition.