When the sun goes away, the mosquitos come out and play—leaving you with itchy, red welts that last for days.
Your strategy: Think twice before you wear that bright floral sundress. "Mosquitos are attracted to vibrant colors or anything that looks like a flower," says Ruthie Harper, M.D., founder of SkinShift Skincare. Your body odor also plays an important role. Researchers at Yale University found that female mosquitos are attracted to human sweat, so try to keep your cool during peak mosquito time (dusk till dawn).
Bug sprays containing DEET will repel mosquitoes, but if you prefer chemical-free solutions, try Harper's simple recipe: Mix two teaspoons of any of the following oils: catnip, basil, cedarwood, citronella, juniper, lemon, myrrh, pine, rose geranium, or rosemary with one cup of 190-proof grain alcohol. (If it's illegal in your state, substitute with the highest proof clear, flavorless alcohol you can find.) Place in a jar with a lid and shake vigorously. Then transfer to a spray bottle and spritz liberally.