Then try lemon or line juice as a repellant. I'm told that they don't like it but haven't tried it.
Where are you on vacation? I'm not being nosy but mozzies carry some nasty diseases in some areas.
Mozzie bites are an almost daily hazard here for part of the year but, despite all the claims for natural remedies, the only ones I find work are proprietary ones from the pharmacy. I've no idea what brands are available to you but there will be a choice from which to find the one that suits you...