Adjust tarps over grills, firewood piles, boats, and swimming pools. Re-grade drainage areas and clean out debris in ditches to eliminate standing water in low spots. Clean and chlorinate swimming pools. Fix dripping water faucets outside, and eliminate puddles from air-conditioners. Store pet food and water bowls indoors when not in use.
Some people also have success with aromatic oils specifically designed as mosquito repellents.
Do not apply to children's hands. Apply to your own hands, then put it on the child. Do not use under clothing. Never use on cuts, wounds, or sunburn. Apply more if needed.