I mixed eucalyptus and lemongrass organic essential oils that I happen to have on hand with olive oil and rubbing alcohol (because I don't have vodka on hand). I do have rosemary organic essential oil but topically it makes me itch.
It worked! I was able to stay out in the garden for about 2 hours. I still wore a long sleeve shirt, long pants, boots, scarf and a hat but no bites on my face, hands and arms.
This morning with 90% humidity, I slathered myself up, and it smells so good, before I walked the dogs. No bites!
The flying biting insects stay away! I do notice that the bees like it but my dogs also stay away.
They sneeze too.
I do put it on one of my dog's ears and back because she is attacked by flying bugs too. She is already high strung, bugs just add to the problem. Seems to work on her.
This is where I get my essential oils:
https://www.luckyvitamin.com/ I found another site but I have not tried it yet:
http://www.bulkapothecary.com/