For most moms, engorgement usually goes away in a few days with these tips:
Breastfeed first from the engorged breast.
Before feedings, encourage your milk flow. Put a warm, moist washcloth on your breasts or take a warm shower for 10-20 minutes.
Massage your breasts before and during feedings, moving from the chest wall to the nipple.
If your breast is hard, hand express or pump a little milk before nursing. That will soften your breast and make it easier for your baby to latch. Be sure to only express enough milk to soften your breasts or provide comfort. If you express too much milk, you may encourage milk production and keep getting engorged.
Between feedings, put cold compresses on your breasts to help reduce swelling and pain.