Mosquito. Other than mosquitoe netting, the best anti-mosquito aid is deet found in many "outdoor" products. Deet is high concentration is better. It will dissolve some plastics so be careful where you apply it. B-6 and other products like avon will not work.
Mosquito netting. While citron candles might keep insects away, keeping a candle burning while you are sleeping is a little risky and impractical. Mosquito netting works well to keep them out of your bed, and off of your skin.
Citris oil. There are some good natural mosquito repellents that use citris oil instead of deet. These work very well for some people. I would suggest giving them a try.