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Is peppermint oil toxic to dogs if applied to skin or licked?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 2 years and 2 months old | 45 lbs

I stupidly put e drops of peppermint essential oil on a bump I thought was a tick to help remove it. Turns out it was not a tick and I wonder if this will harm dog? He is mixex breed 45lbs. He just had a dog biscut and seems ok. But wondering to look for and if it will harm him?

1 Answer

Most Helpful Answer

Andrea M. Brodie, DVM

Answered By Andrea M. Brodie, DVM

Veterinarian

Published on March 13th, 2018

No, in a dog this size a drop of peppermint oil will not do any harm. Generally I would not put oil onto ticks as they get stressed and then regurgitate blood back into the dog and with it any bacteria or viruses they may carry. It is better to use a tick-preventative such as Bravecto or any of the spot-ons that prevent fleas and ticks. A Serestro collar also will work.
You may want to wash the spot where you put the peppermint oil with a little bit of soap and water. so Samuel Jebediah does not lick the oil off. As I said, there should be no harm done. I would watch for vomiting within the next few hours. If that happens, you may want to take him to a vet for a check-up.
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