Solid nodule of the upper lobe of the right lung of smooth 3㎜×3㎜ can usually take medicine. Normally, if a solid nodule 3㎜ x 3㎜ in the upper lobe of the right lung is smooth, and if the patient does not have obvious clinical symptoms and the organs of the whole body are in normal condition, it is usually considered as a benign nodule. Benign nodules usually do not require special treatment. However, patients need to pay attention to regular checkups in the hospital, and if the nodules are accompanied by fever, cough, fatigue, chest tightness and other symptoms, they need to take amoxicillin, roxithromycin and other drugs under the guidance of the doctor for treatment. In addition, if the patient’s nodules increase in size or the accompanying symptoms are not relieved, it is recommended to go to the hospital for a more in-depth examination, and under the guidance of the doctor to actively accept the treatment, do not delay to make the condition worse.