I went on holiday the day after my first carpal tunnel op. You only have sedation for the op and the scar only requires it most 2 stitches. I had no difficulty in using my hand normally when dressing, undressing, in fact it was back to normal life the day after, except for a sling for 2 days and not being able to use the swimming pool and spa facilities.
The first op was 7 years ago. At the end of last year I had my other wrist done. No operation, just a 'procedure, a needle was thread into my wrist and down half an inch to the carpal muscle, it was snipped, the needle was withdrawn. A bit of lint and plaster was put over the 'wound', rather like after a blood test, no sedation, just local anaesthetic, within 15 minutes I was on my way home, and life went straight back to normal.
11 days after your op/procedure, everything will be back to normal and you will already have forgotten you even had the op. Enjoy your holiday.