Last year we tried a completely natural essential oil repellant mixture in a spray made locally. We used it once and it stripped our mucus membranes so that none of us could taste or smell for 2 weeks. We held our breaths when we sprayed it on and I was careful to spray clothing areas and not face or head at all, but it still happened. Once our taste and smell returned, I had to store even the bottle outside because it was so potent. We asked the people at the store and they said that they'd never heard of that happening before.

I can't even go near the shelf in the store now.
Anyway, I had to come up with something on my own, so since yarrow is abundant here, I steeped a bunch of it in just enough hot water to cover and then sprayed it on us. I watched as mosquitoes attempted landings on my skin and immediately were repelled- same thing with our dc and dp. My steeping was not strong enough though because this went on at a rate of 100% repelled for 20 minutes and then mosquitoes began landing here and there, staying for a taste.
This year, they are back already (!) and none of us has been poked even once. We have been eating coconut oil everyday and though our ds3 and ds4 whose skin is very fair and who are especially prone to being poked by the critters has not been even once. They have been nearly landing and then flying away immediately.
I have not been able to find much on coconut oil as a repellent and I think it is possible that this may have to do with our location and the mosquito species we have here since the ones that are out now are obviously northern and not accustomed to coconut at all.
We'll see if this keeps up and if it is effective against the other few species of mosquitoes that live up here when they are out later on in the summer.
If you have black flies and don't mind (or really enjoy as we do) licorice (root, tea, or candy as long as it has the real extract in it), black flies really stay away, regardless of pregnancy and increased blood volume. Licorice isn't usually recommended during pg, but I have taken it as a tea for low blood pressure with success. And the bonus was not being bitten by black flies too!
