It's a little painful and hard lump for two weeks. I thought it was acne, but it hasn't become smaller
From the picture, considering that the local part is caused by the symptoms of suppurative infection, it is suggested to apply erythromycin ointment or ichthyol ointment, take oral antibiotics for remission treatment, and go to the local hospital for further infusion or local puncture when necessary. You should avoid eating spicy and irritating food and staying up late every day.
Considering the analysis of your symptoms, it may be caused by factors such as cysts. For this symptom, it is suggested that you should go to the surgery of the hospital in time for further examination. You can consider the treatment through surgery. It has a certain effect. You just have no effect through drug treatment.
Through the observation of the pictures you uploaded, you can see that this symptom is caused by local factors causing cysts. Therefore, for your situation, it is suggested that you should go to the hospital for further examination in time. After diagnosis, you should give drugs for conditioning treatment. In the process of treatment, you must pay attention to developing good living and eating habits and avoid contacting some irritant substances.