Repel Pests Naturally Using Mentholated Ointment: A Powerful Household Trick

If you thought mentholated ointment was just for coughs and colds, think again. That little jar in your medicine cabinet—packed with menthol, camphor, eucalyptus oil, and cedar leaf oil—can double as a powerful natural pest repellent. From mosquitoes and ants to rodents, this fragrant balm works wonders at keeping unwanted visitors out of your home without the need for toxic sprays.

Here’s everything you need to know about why it works, 13 creative ways to use it, plus safety tips to keep your home fresh, clean, and pest-free.

Why Mentholated Ointment Works

The strong scent of menthol, camphor, and essential oils overwhelms pests’ senses, making your home far less inviting. It’s a simple solution that’s:

  • Non-toxic when used properly
  • Budget-friendly and easy to find
  • Safer than harsh chemicals (with proper precautions)
  • Effective for both indoor spaces and gardens

13 Clever Uses for Mentholated Ointment

Mosquitoes – Dab a little on exposed skin or place open jars near windows and beds. Pair it with a homemade mosquito trap for even better results.

House Flies – Rub it on a cloth near sinks or trash bins, or mix with warm water in a bowl. Refresh weekly to maintain effectiveness.

Ants – Apply along cracks, baseboards, and near garbage areas. Reapply after cleaning to block new trails.

Spiders – Spread on windowsills, baseboards, or spots where webs appear. Combine with citrus sprays for extra protection.

Cockroaches – Use behind appliances, in pantry corners, or near trash. Just keep it away from direct food contact.

Mice and Rats – Soak cotton balls with ointment and place behind cabinets or near food storage. Replace weekly and seal entry points for best results.

Gnats – Dab on skin or leave small containers near fruit bowls. Bonus: it can also soothe existing bug bites.

Bed Bugs – Apply along mattress seams and frame edges. Use alongside a thorough cleaning routine.

Silverfish – Mix with hot water and spray in damp areas like bathrooms, under sinks, and around cabinets.

Moths – Rub on cotton balls and place in drawers or closets. Refresh every couple of weeks to keep clothing safe.

Beetles – Dab along cracks, windows, or other entry points. Reapply after storms or heavy cleaning.

Earwigs – Rub onto garden stakes or planter stems. Combine with natural powders like crushed shells for extra strength.

Wasps – Apply under railings, around outdoor furniture, or under eaves—but never directly on active nests.

Bonus: Fleas Indoors – Place small dabs at the corners of pet bedding or collars (never on skin). Regular vacuuming and washing pet items will boost results.

Safety Tips to Keep in Mind

  • Don’t apply directly to sensitive skin or near eyes.
  • Keep away from pets’ mouths, paws, and bedding unless a vet approves.
  • Avoid use near babies or toddlers under age two.
  • Test on fabrics and wood first—menthol can stain.
  • Always use in well-ventilated areas.
  • Wash your hands after handling to avoid irritation.

Pro Tips for Best Results

  • Clean the area before applying so pests don’t follow existing trails.
  • Focus on entry points like windows, doors, and baseboards.
  • Refresh applications weekly or whenever the scent fades.
  • Pair with other natural repellents for layered protection.
  • Enjoy the bonus of a fresher-smelling home while keeping pests away.

The Bottom Line

With just one jar of mentholated ointment, you can protect your home naturally, skip harsh chemicals, and save money. It’s an underrated household hack that works against a wide range of pests—simple, effective, and eco-friendly.