Butterfly Therapy Peas Pack For Breast - Hot/Cold Therapy - Reusable - 2 Pieces - Green Cold Therapy: relieves engorgement,swelling and pain. Hot Therapy: relieves mastitis,plugged ducts. Breast Pump Aid: Use hot wrapped around breast pump to reduce time spent pumping. Postpartum mother will always have breast pain,breast congestion, leading to mother have many different kinds of discomfort. This product can use hot compress to dredge breast, effectively relieve pain of mother milk expansion during breast-feeding , let mother and baby nursing process more smoothly, How to use: Cold use: Place breast pad in refreigirator for 1 hour, or place in freezer for shorter cooling time. Make sure breast packs are laid on flat surface to ensure beads are arranged evenly. apply directly on affected area, Hot use: Wrap breast pad in moist paper towel. place pack in microwave at intervals of 10 seconds up to 30 seconds. Apply breast packs directly to affected area.