Additional tip: if you drink tonic (in the US this means soda with quinine in it, not a general medicinal drink) or take quinine pills then mosquitos won't bite you.

I drank tonic like it was water one summer just because I liked it, and I realised in the fall that I had gotten bitten exactly once, whereas usually I am the person around the campfire who is SWARMED with them. I'll take the dog for a walk in 90 degree heat and still put on long socks, pants, and a sweatshirt just to try to block them, and will still get bitten around the face. So it was definitely the tonic that helped.

DO NOT follow the above tip if you are on medication that would interact with quinine. If you can't eat grapefruit while on your meds, you can't have quinine. Check that shit first. It's much more common than you might think.

They also make bug repellent lotion, so there's an option other than spray!