Cold use - to sooth sore or engorged breastsTo sooth sore or engorged breasts. Keep in fridge or freezer. Always use with sleeves. Developed with breastfeeding expertDeveloped with midwife and baby adviser Vicky Scott who has been supporting mums with breastfeeding for 15 years. Includes soft sleevesFor greater confort on skin Warm use - to stimulate milk flow before breast feedTo stimulate milk flow before breast feeding. Lightly dampen the sleeves, as moist heat gives an extra comfortable feel and helps stimulation. Heat the pad in hot water for 10 minutes.