To much pain

The week before my period my breasts get so heavy and they hurt so bad. The pain is sometimes so bad I can't even wear my bra. I have to completely stopped wearing push-up bras or even padded at all or even with an underwire the week before. I have small breast too. I rub them and it feels better for a little bit, but not long. Any advise on what to do to stop the swelling and pain?