If you use DEET, I recommend spraying it on your clothes, not on you, to minimize absorption (what goes on your skin gets into your body to some extent) and using another type of product on your body.
I you are just concerned about mosquitos, there are small electronic devices that make the sound of either the rustling of dragonfly wings (dragonflies are natural predators of mosquitos) or the sound (inaudible to humans) of a male mosquito. Seems that the females are the only ones who drink blood, and they have no interest in the males except for mating.