If you have a hard lump on the breast and obvious pain, you can take non-steroidal anti-inflammatory and pain-relieving drugs, such as diclofenac sodium extended-release capsules, and further check the cause of the pain caused by the hard lump. First, consider the symptoms caused by acute mastitis, the mammary gland belongs to the secretion organ will have secretion through the mammary ducts, nipple out of the body, when the bacteria retrograde infection is very easy to lead to inflammation in the mammary ducts, and at the same time, the local swelling, pain. It is necessary to take oral antibiotic medication in time and do the irrigation of breast ducts if necessary. Secondly, cystic breast hyperplasia, due to hormone metabolism disorders in the body leading to overgrowth of the mammary glands, manifested as hard lumps in the mammary glands, swelling and pain, tingling, and need to take oral medication to ease the liver and regulate the flow of qi, such as the pill. Finally, the soft tissue injury of the breast will also appear localized swelling and pain, try to go to the regular hospital, diagnosis and then symptomatic pain treatment.