By Centers for Disease Control Special to GUIDONWhen used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women.Use Environmental Protection Agency-registered insect repellents with one of the active ingredients below.— DEET— Picaridin (known as KBR 3023 and icaridin outside the US)— IR3535—Oil of lemon … [Read more...] about Protecting against mosquitoes