Ok, a bit of limburger here.

We had a five day vacation to Negril Jamaica and it was wonderful except that I got a sun rash and horrible bites from either mosquitoes or sand fleas. I am still itchy and rashy.

If we go again we have to find a resort that both fogs for mosquitoes and that has beach huts in plentiful supply so I don't suffer.

From what I understand, the sand fleas are actually microscopic shellfish and I'm allergic so that's likely why the bites swell and itch so bad.