Can 91 Alcohol Kill Fleas. Dealing with a flea infestation can be very frustrating, but you should avoid using harmful flea treatments for the sake of your beloved pooch, here are some reasons why. However, this household chemical can be risky if used incorrectly.

It is quite effective in killing insects too. Rubbing alcohol is also flammable, especially when beds and furniture are saturated with it. Caution includes not taking or drinking it and also avoiding using it for lice treatment.