Instruction to be used How long am i able to retain an opened single dose of VISMED® or VISMED® Gel just before I want to exchange it???????? ???????? ???????? ??????? ?? ????? ????? ??? ???? ????????? ?? ???? ??????????? ????????.Otherwise or else encouraged, instill 1 or 2 drops of VISMED® GEL on to the attention as often as necessary. Immedia