Molnlycke Molnlycke Mepitac 298400 Soft Silicone Tape, 1-1/2" x 59"

long does this tape stay on at a beach vacation when you're in water a lot?

does it heal & fade surgery scars?

I just had surgery and i have stitches in also. Can the tape be applied now or after my stitches are removed?

Does the 1.5" silicone tape stay on better than the 0.75" tape for a wrist scar? The 0.75" comes loose just below my palm after washing hands.