Paroxysmal pain around the left breast may be caused by breast hyperplasia, mastitis, myocardial ischemia and other diseases. Tamoxifen is commonly used for breast hyperplasia, cefixime is commonly used for mastitis, and aspirin is commonly used for myocardial ischemia and other drugs. 1. Breast enlargement: commonly used drugs are tamoxifen, suitable for the treatment of women with recurrent metastatic breast cancer, breast hyperplasia, with fundus disease, allergy is prohibited, some patients will appear after the use of medication, loss of appetite, nausea, vomiting, diarrhea and other adverse reactions. 2. Mastitis: commonly used drugs are cefixime, used for cefixime-sensitive streptococcus spp. and other bacterial infectious diseases, allergic to this product or other cephalosporins is prohibited, the main adverse reactions including diarrhea and other gastrointestinal reactions, skin rashes and other skin symptoms. 3. Myocardial ischemia: commonly used drugs include aspirin, which is suitable for inhibiting platelet aggregation and reducing myocardial infarction in patients with atherosclerosis, etc. It is forbidden to patients who are allergic to this product, and the more common adverse reactions include nausea, vomiting, epigastric discomfort or pain, etc. It is recommended to go to the hospital in time for a complete examination of the patient’s condition. It is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment, follow the doctor’s instructions for medication.