This sheet is about exposure to insect repellents in pregnancy and while breastfeeding. This information is based on available published literature. It should not take the place of medical care and advice from your healthcare provider. What are insect repellents? Insect repellents are lotions, sprays, or oils that are put on skin or clothing to lower the chance of bites from mosquitoes, flies, ticks, and spiders (“insects”). Insects can carry serious diseases such as malaria, dengue, West Nile …

