How to Use Bug Spray Effectively: Safety, Application & Choosing the Right Repellent

Proper insect repellent use maximizes protection while minimizing risks. Follow this evidence-based guide for safe, effective application.

Before You Spray

1. Read the label—active ingredient, concentration, reapplication interval, age restrictions.
2. Choose EPA-registered repellents with proven ingredients:
   • DEET (20–30% for adults, 10–30% for children >2 months)
   • Picaridin (20%)
   • IR3535 (20%)
   • Oil of Lemon Eucalyptus (OLE/PMD)—not for children <3 years
3. Prepare the area: Remove food, cover water containers, close windows/doors if spraying indoors.
4. Dress protectively: Long sleeves, pants, closed shoes, socks.

Application Technique

Outdoors (Personal Protection)

• Apply to exposed skin and clothing—not under clothes.
• Start farthest from you, work inward.
• Spray hands first, then apply to face, neck, ears—avoid eyes, mouth, cuts.
• Don't oversaturate; a thin, even film is sufficient.

Indoors (For Pests)

• Target entry points: windows, doors, baseboards, cracks.
• Spray hiding spots: under sinks, behind appliances, crevices.
• Ventilate well; leave area until dry.

Safety Essentials

• Reapply per label (typically every 4–8 hours; sooner if swimming/sweating).
• Never spray directly on face—apply via hands.
• Wash treated skin with soap and water when protection is no longer needed.
• Do not use on infants <2 months—use mosquito netting instead.
• Store safely—away from children, pets, heat, flames.
• Don't apply to pets—use veterinarian-approved products only.

After Exposure / First Aid

• In eyes: Rinse 15 minutes with water.
• If swallowed: Call Poison Control (1-800-222-1222).
• If rash/irritation develops: Wash off, discontinue use, consult doctor.

Combine repellent with permethrin-treated clothing and environmental control for the best protection.