When I lived in Mazatlan the mosquitoes were the size of burros and I'm a mosquito magnet, so you can imagine... I learned 3 valuable things.
1: Avon Skin So Soft is an excellent repellent. (You should be able to get some at the Penasco Beauty Center.)
2: If you do get bitten, try not to scratch it and the itch goes away in 15-20 minutes.
3: My favorite-- if you get bitten at home, rub a dry bar of soap on it (it doesn't seem to matter what kind). The itch stops very quickly.
This message brought to you by your friendly home remedy consultant.