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Fight the Bite

Tips for Using Bug Repellent

One of the ways to protect yourself from West Nile virus and tickborne illnesses is to use insect repellant.

The Ingredients Are Important.

For adults:

  • An EPA-registered repellent containing 20% to 50% DEET is sufficient for adults.
  • Acceptable alternative EPA-registered repellents contain picaridin, or oil of lemon eucalyptus.

For children:

  • Use an EPA-registered insect repellent that’s specifically for children and that contains 20% to 30% DEET.
  • On babies younger than two months old , do not apply repellent at all.
  • On children younger than three years old , do not use repellents containing oil of lemon eucalyptus or para-menthane-diol.

10 Tips for Applying Insect Repellent.

spray canNot only are the ingredients of the repellant important, but how you APPLY the repellent is also important. Below are 10 tips on application:

  1. Always follow label directions.
  2. Apply bug repellant on exposed skin or on top of clothing.
  3. Do not apply repellent on skin that’s underneath clothing.
  4. Do not apply repellent over cuts, wounds or irritated skin.
  5. If you are using sunscreen, apply sunscreen first and insect repellent second.
  6. Do not spray repellent directly on your face. Instead, apply it to your hands first and then put it on your face.
  7. Do not apply repellent to a child’s hands or near their mouth or eyes.
  8. Do not apply DEET to children more than once a day.
  9. After returning indoors, wash treated skin with soap and water.
  10. Wash treated clothing before wearing it again.

Access additional information and guidance on using DEET through the Illinois Department of Public Health .

Updated May 29, 2025, 2:29 PM