I had almost just written about this on the camping thread, I went on a long canoe trip in the Boundary Waters with frequent portgages and I was tasked with carrying the canoe while others carried stuff. To keep the (heavy!) canoe balanced, I really needed both hands on it.
There were a LOT of mosquitos and I had to just watch them gorge on my forearms as I walked, since I couldn't swat at them.
They'd do the repeated biting thing and it itched like CRAZY when they finally had their fill. (I swore they looked me straight in the eye and gloated.)
I'm a bit allergic too though, when I was little I'd get giant swellings, like my whole eye swollen shut from a bite near it, but that level of reaction subsided with age/ exposure. I still get welts but not as bad. Anyway if I weren't allergic maybe it wouldn't itch as much.