Mosquitoes

Hey guys, any time I try to take my 21 month old son outside, we get swarmed by mosquitoes instantly. I recently tried an organic spray that's supposed to keep mosquitoes and other bugs away (babyganics), but my son came in with 8 bites in total on him, so that obviously didn't work. So I was wondering if anyone knew of a safe product that will actually keep mosquitoes away from us. I'm tired of not being able to go out without one or both of us being eaten alive.