Instruction for use How much time can I preserve an opened single dose of VISMED® or VISMED® Gel right before I want to replace it?????? ???? ???????? ?? ????? ???? ??? ?????? ???? ???????? ??????? ???? ???????? ??????? ????? ?????? ???? ???????? ??????? ??????? ?? ???? ??????? ?????? ??? ?????.Instruction for use How long can I retain an opened