Rubbing Alcohol On Fleas. Alcohol is a highly flammable substance and you need to be extra cautious especially when using it indoors. It works by breaking down the waxy coating of the insect’s body, which dehydrates them and causes death.
Now spray the solution on areas where you have seen fleas. Alcohol, also known as isopropyl alcohol is a powerful disinfectant, that’s why many pet owners rely on it to kill fleas. Can rubbing alcohol kill fleas?