The short answer
Isopropyl (rubbing) alcohol kills ticks by dehydration. Use it to kill a tick after removal. Never apply it to a tick that’s still attached.
After removal: yes
Drop a removed tick into a small container of rubbing alcohol. It’ll die. This is one of the recommended disposal methods and it preserves the specimen well enough for your vet to identify the species.
In the Oakville area, species identification matters. Only blacklegged ticks carry Lyme disease in Ontario, so knowing what bit your dog determines next steps. Bring the tick in the alcohol to the clinic.
On an attached tick: absolutely not
A study published in the journal Pediatrics tested five popular tick removal methods, including applying 70% isopropyl alcohol to attached American dog ticks. The alcohol failed to make ticks detach. They held on.
Worse, applying alcohol to an attached tick can stress it into regurgitating its stomach contents into the bite wound. Tick-borne pathogens like Borrelia burgdorferi live in the tick’s gut. Forcing regurgitation increases Lyme disease transmission risk. The same goes for vinegar, petroleum jelly, nail polish, and heat.
Correct tick removal
- Fine-tipped tweezers or a tick removal tool. We have Tick Twisters at the clinic.
- Grasp the tick as close to the skin as possible.
- Pull upward with steady, even pressure. Don’t twist or jerk.
- Clean the bite area with rubbing alcohol or soap and water.
- Drop the tick into rubbing alcohol, seal it in tape, or put it in a container.
Label the container with the date and where on the body you found the tick.
Rubbing alcohol is a good tick killer and a good wound cleaner. It’s a terrible tick removal tool. Remove first, then disinfect. For what actually prevents ticks in the first place, see our post on the safest tick protection for dogs.
Key takeaways
- Rubbing alcohol kills ticks after removal. It’s a recommended disposal and preservation method.
- Never apply alcohol to an attached tick. It doesn’t cause detachment and can trigger disease-transmitting regurgitation.
- Remove ticks mechanically: tweezers, close to the skin, steady upward pull.
- Save the tick in alcohol and bring it to your vet for species identification.
- In Ontario, species identification determines whether Lyme testing is needed.
References
- Needham, G.R. (1985). “Evaluation of five popular methods for tick removal.” Pediatrics. PubMed
- Dial A Vet. “Does Alcohol Effectively Kill Ticks on My Dog?” dialavet.com
- Nada Mosquito. “Will Rubbing Alcohol Make a Tick Back Out?” nadamosquito.com
- Fowlerville Veterinary Clinic. “Tips for Ticks.” fowlervillevet.com
- Pumpkin Pet Insurance. “How to Get a Tick Off a Dog.” pumpkin.care