10 Uncommon Uses for Mouthwash That Are Surprisingly Useful

Most people keep mouthwash in the bathroom and use it for one reason only: fresh breath. But once you look at the ingredients, especially the alcohol and antibacterial properties found in many formulas, it starts to make sense why people use it for other things around the house, too.

No, mouthwash isn’t some miracle cleaner, and it’s not going to replace products made for heavy-duty jobs. Still, in small situations, it can be surprisingly handy. People have used it to freshen surfaces, help with odors, clean certain items, and handle a few unexpected household problems without spending extra money on specialty products.

Some of these uses sound a little strange at first, but a lot of them actually work pretty well. Here are 10 unusual but useful ways people use mouthwash beyond brushing their teeth.

1. Clean Household Surfaces

If you’re out of all-purpose cleaner, mouthwash can help in a pinch. Apply a small amount to a cloth and wipe down countertops, glass, or bathroom surfaces. Stick to clear mouthwash to avoid residue.

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2. Deter Fungus Gnats on Plants

Diluted mouthwash can help discourage fungus gnats and mildew around houseplants. Mix equal parts mouthwash and water, and lightly spray the soil surface. Test first and use sparingly.

3. Help With Mild Foot Fungus

For mild cases of athlete’s foot, some people use alcohol-based mouthwash as a temporary treatment. Apply with a cotton ball to clean, dry skin. Discontinue if irritation occurs.

4. Make Cut Flowers Last Longer

Adding a small amount of mouthwash to the water in the flower vase can help slow bacterial growth. This can extend the life of fresh flowers by keeping the water cleaner for longer.

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5. Freshen a Humidifier

Humidifiers can develop odors if not cleaned often. Adding a small amount of mouthwash to the water may help reduce bacteria and odors. Always check your humidifier’s manufacturer guidelines before trying this.

6. Deodorize a Garbage Disposal

Unpleasant smells from the disposal can sometimes be reduced by pouring a small amount of mouthwash down the drain and running hot water briefly.

7. Freshen a Garbage Can

For lingering odors in trash bins, soak a paper towel with mouthwash and place it at the bottom of the can. This helps absorb smells between cleanings.

8. Reduce Odors in Laundry

Clear mouthwash can help neutralize odors in smelly clothes or washing machines. Add a small amount to a load or run an empty cycle to help reduce musty smells.

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9. Clean Tile Floors

Diluted mouthwash can be used on tile floors for light cleaning. Mix with water and mop as usual. Avoid using on delicate or natural stone surfaces.

10. Disinfect Minor Cuts

Alcohol-based mouthwash can be used to clean minor cuts or scrapes when first-aid supplies aren’t available. This should only be done for small wounds and may sting on contact.

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