The causes of nipple pain include mastitis, breast cancer, eczema, trauma, etc. Treatment includes medication such as levofloxacin and surgery. 1. Mastitis: If the inflammation of the breast is caused by bacterial infection of the breast, you can give antibacterial treatment with drugs such as levofloxacin. 2. Breast cancer: Breast cancer mostly manifests as painless breast lumps, but a small number of patients may be accompanied by nipple pain and other symptoms, and they need to consult a doctor as soon as possible to receive comprehensive treatment mainly based on surgical treatment. 3. Eczema: If the nipple pain is caused by eczema, drugs such as loratadine can be given to treat it. 4. Trauma: For nipple injuries caused by external forces, you can apply iodophor solution to sterilize the nipple. If you have nipple pain when touching the nipple, please consult a doctor, and follow the doctor’s instructions to apply the above medications.