Dual Therapy Breast Gel Pad ( Hot & Cold Use)Breast Gel Pads are unlimited use healthy, safe, non toxic and non caustic. Can be used warming or cooling therapy or breast pump aid. Please follow the INSTRUCTIONS FOR USE on listing or packaging Hot Therapy In Microwave relieves pain from blocked ducts and mastitis and encourages let down. Heat therapy to ease the milk into flowing better and it feels relieving Cold Therapy In Freezer soothes pain from engorgement, swelling or hardness related to