Does Rubbing Alcohol Kill Bed Bugs?

The short answer is yes. Using alcohol for bed bugs can work—but only up to a point, and probably not in the way you’re hoping. When you spray rubbing alcohol directly onto a bed bug, it can kill it on contact by dissolving its outer shell and drying it out. So it’s not completely useless. But here’s the catch: research from Rutgers University found that even with a direct spray, rubbing alcohol only kills around 50% of exposed bed bugs. The other half just walk away unaffected.

The bigger question is, does rubbing alcohol kill bed bugs that are hiding deep in your mattress seams, behind your baseboards, or tucked inside wall cracks? Not a chance. Bed bugs are experts at hiding, and they spend most of their time somewhere you can’t easily reach with a spray bottle. It also won’t touch their eggs at all, which means even if you’re spraying every day, you’re only knocking out a fraction of the infestation while the rest keep breeding undisturbed. That’s not the only risk—alcohol is highly flammable, and spraying it onto mattresses and upholstered furniture is genuinely dangerous.

So does alcohol kill bed bugs well enough to be your go-to solution? Honestly, no. A much safer and more effective approach is washing all your bedding and clothing on the highest heat setting, vacuuming mattress seams thoroughly, and running a steam cleaner over your furniture and baseboards. Heat is one of the few things that reliably kills both bed bugs and their eggs.

Bed bugs are tough, they reproduce quickly, and they don’t give up easily. DIY methods can help reduce numbers, but they rarely eliminate an infestation completely. If you’re still seeing activity after a week or two of trying, it’s time to call in a professional. Florida Pest Control can help to thoroughly identify, treat, and manage bed bug populations before the problem gets completely out of hand.