I despise mosquitoes. Hate them. A couple of years ago, I actually had a bad reaction to a mosquito bite. My finger swelled up and turned blue at the tip. The doc asked me if it was a spider bite. Nope. Mosquito.
He gave me a Benadryl shot, which took care of the swelling and the reaction, but I could have done without it.
About the only thing that works for me is the Deep Woods Off! It stinks to high heaven, but the mosquitoes don't come near me when I'm using it. Really, you choose the spray that keeps the mosquitoes from biting you.