This special zinc & silver spray is a perfect first defence for many viral, bacterial or allergic reactions; is non-addictive, can be used as often as required, is hypoallergenic and does not cause drowsiness. ENT stands for Eyes/Ears, Nose, Throat. The Health Factory’s ENT zinc and silver spray is a perfect natural health product for the whole family, offering a safe anti-viral, anti-bacterial and immunity-supporting solution in a convenient, pocket-sized spray.