As outdoor time increases, parents ask whether a baby can wear insect repellent and which product is safest. This article follows American Academy of Pediatrics (AAP) and CDC guidance in the United States.
Why It Matters
Mosquitoes and ticks cause itchy bites that children scratch open, and in some regions these insects can carry infections. Repellents do not kill insects; they make it less likely that insects land on skin. For babies, physical barriers such as mosquito netting over strollers and carriers, long sleeves and long pants are usually the first choice.
How It Differs by Age and Stage
The AAP and CDC both advise against using insect repellent on babies younger than 2 months. For children older than 2 months, DEET can be used, and the AAP advises products with no more than 30% DEET. The AAP says 10% DEET protects for about 2 hours and 30% for about 5 hours, so a higher strength mainly lasts longer rather than working better. The CDC advises that products containing oil of lemon eucalyptus (OLE) or para-menthane-diol (PMD) not be used on children under 3 years old. Other countries set different age limits, so follow local labels if you live outside the U.S.
What to Do at Home
Read the label for the active ingredient and the minimum age. Spray or squeeze the product onto your own hands first and spread a thin layer over exposed skin, which keeps it away from the child’s eyes and mouth. The CDC says not to put repellent on a child’s hands, eyes, mouth, or cut or irritated skin. For the face, apply with your hands and avoid the eye and mouth area. If you also use sunscreen, the AAP suggests putting sunscreen on first and repellent second, and advises avoiding combined products because sunscreen needs frequent reapplication, which could mean too much repellent. Guidance from the AAP handout is to apply DEET no more than once a day. After coming indoors, wash treated skin with soap and water and launder the clothes before wearing them again.
Common Misunderstandings
A higher percentage is not safer or stronger, as noted above. A plant-based or natural label does not mean it suits every age, since oil of lemon eucalyptus has a minimum age of 3 years. Wristbands and stickers are often sold as repellents, but they are not a substitute for a labeled spray or lotion. Spraying directly onto a child’s face can lead to inhaling the product or getting it in the eyes. Adult products used at adult amounts on a small child can mean too much exposure.
When to Seek Care
If the skin turns red, itchy or blistered, wash the area right away and stop using the product, and see a pediatrician if it lasts longer than a day. Rinse eyes with clean water if repellent gets in. If a child swallows repellent, call Poison Control (1-800-222-1222 in the U.S.) or a doctor, and do not induce vomiting. Go to the emergency room right away for facial swelling, widespread hives, trouble breathing, repeated vomiting, a seizure or unusual limpness. This information is based on U.S. guidance; if you live in another country, check with a local pediatrician. This information isn’t a diagnostic tool and doesn’t replace advice from a medical professional.