Your explanation tells that you are having engorgement of breast..that is because of inadequate milk expression
You need to express milk from the breast completely
To make engorged breast soft, you can use hot & cold fomentation..it will make breast softer and relieve pain..then you can empty your breast
Inability of emptying breast may cause breast abscess..in That case you may require antibiotics & rarely I n D of abscess..consult your doctor for same
Health Tips
Low milk supply suggest you are not healthy, suffering from weakness or more commonly you are having diet which is not containing adequate proteins in it.