We know how much you loved 17 Uses for Hydrogen Peroxide, so we decided to find another product that you can use around the home. Mouthwash has always been known for oral care, but let’s go a step further, and begin to use mouthwash for other reasons! I am going to share some knock your socks off mouthwash hacks, that have nothing to do with your mouth, below!

20 Incredibly Useful Mouthwash Hacks

Incredible Mouthwash Hacks That Have Nothing to Do With Your Mouth!

From using Listerine for your deodorant, toilet bowl cleaner, to treating poison ivy and so much more. You will be amazed at all the alternative uses for mouthwash. Listerine contains ingredients like thyme, alcohol, and eucalyptus, so it isn’t surprising that you can use it in so many different ways! You can use other brands of mouthwash, but I recommend the powerful magic of Listerine!

Lessen The Darkness of Bruise

Lessen the darkness of a bruise, by dabbing a little mouthwash on the bruise. You can do this morning and night, and it should lessen the purple look.

Toilet Cleaner

Mouthwash Hacks - Toilet Bowl Cleaner

No toilet bowl cleaner? Don’t worry use mouthwash as a last minute cleaner. Pour around the rim and scrub just like regular toilet bowl cleaners.

Freshen Trash Can

Soak a paper towel in mouthwash and place in the bottom of the trash, it can help freshen up the trash can as it fills up.


If you have a mild case of dandruff you can use mouthwash to treat the condition. After you wash your hair, use a cotton ball soaked with mouthwash and dab your scalp. Do this every other wash, to help reduce dandruff.


If you are in a bind and are out of deodorant, use mouthwash. Just put some on a cotton ball and rub on your armpits. This will help remove any body odor. That reminds me, check out 12 Ways to Use Deodorant (Besides Your Armpits).

Sanitize Toothbrushes

Soak the head of the toothbrush in mouthwash overnight to help sanitize your toothbrush. Then just rinse and let dry.

Piercing Aftercare

If you have a new piercing you can use mouthwash in place of saline solution. Just dab some mouthwash on the area using a cotton ball to help prevent infections. Works great for lip piercings, but can be used on any piercing.

Foot Fungus

Mouthwash Hacks - Foot wash

Listerine is powerful, so powerful it can help lessen and even cure foot fungus. Simply soak your feet for half an hour in a bath. Do 1 cup Listerine to a gallon of warm water. If you have severe fungus, add in 1/3 cup of vinegar.

Remove Garlic and Onion Odor From Hands

Wash your hands with mouthwash, followed by washing with water and soap. It will lessen or even fully remove the odor of garlic and onions from your hands. Repeat as needed.

Bug Bite

If you have an itchy bug bite, put some mouthwash on a cotton ball and dab on the bite. It should help lessen the itchy feeling.

Minor Cuts and Scrapes

You can use mouthwash to disinfect a minor cut or scrape. Just dab some on the cut or scrape to clean it. It will sting a little.

Keep Humidifier Clean

Mouthwash Hacks - Humidifier Cleaner

Keep your humidifier clean by adding 1-2 tablespoons of mouthwash with your water when you run it. Do this once every couple weeks to a month, when you are using your humidifier. It will disinfect it.

Poison Ivy Relief

Help relieve the itch of poison ivy by dabbing some mouthwash on the affected area. Do this a few times a day to help make it manageable.


Help those blisters heal up faster after a long nature hike! Just dab some mouth wash on your blister with a cotton ball 2-3 times a day, and in a few days, your blister will be gone.

Keep Flowers Fresh Longer

Using mouthwash with fresh cut flowers can keep them alive longer! Mix 1 tablespoon of mouthwash to four pints of water. Replace the water in the vase. This works to kill bacteria that could accelerate decomposition in your flowers.

Clean Garbage Disposal

Pour 1/2 cup of mouthwash down your garbage disposal and run the disposal for a few minutes with water running. This is a great way to disinfect and deodorize. Do this every week to every other week.

Keep Cats from Peeing On Rugs

Keep your cat from marking their territory by spraying a mixture of 1 cup water and 3 tablespoons clear mouthwash (to prevent staining). Then just spray the area where your cat pees, to repel them. The mint smell will be overpowering to your little cat.

Athlete’s Foot

If you have a case of athlete’s foot, then grab the mouthwash. Just apply morning and night on the bottom of your feet to help get rid of the athlete’s foot.

Window Cleaner

You can use mouthwash in place of a glass cleaner. Just pour into a spray bottle and wipe down windows like you would with other window cleaners.

Prevent Fungus on Indoor Plants

If your indoor plants look like they are getting hit with fungus or mildew, try this method. Spray the leaves with a mixture of 1 part mouthwash and 3 parts water. Do this every couple days.

Incredibly Useful Mouthwash Hacks

It’s quite amazing how many ways you can use mouthwash by following these mouthwash hacks. Do you know of any other uses for mouthwash that we missed?