Permethrins are serious allergens and they can wreak enough havoc with the immune system to make you allergic to other things.
The natives of India taught this former Florida gal one other thing: you, sir, need curry, in quantity. Go for a good Madras blend with fenugreek seed and add industrial quantities of garlic. Five big cloves is good for two people. The garlic, fenugreek, and other spices are taken up in body odor and jam the skeeters’ olfactory sense.
I once had the pleasant experience of negotiating with two N FL police officers outside for a couple hours about the attempted theft of a car I owned. The last question they asked was “Why are the mosquitoes leaving you two alone and eating us alive?” Ship in the spices from an Indian grocer by mail.
Sunbeam used to make small ultrasonic devices that would keep a badly weatherstripped camper/tent free of skeeters except in the Mississippi River valley, where they are overwhelming and competition for our blood is intense.