5. Rubbing alcohol
This isn’t a remedy for a rash that already exists, but rather a prevention measure. If you have been exposed to poison ivy and you are aware of it, applying rubbing alcohol to the contact site could prevent the rash from developing. Rubbing alcohol is very drying, so it can help to destroy the oils found in the poison ivy plant that cause that irritating rash. If blisters do develop, you can try applying rubbing alcohol to them, as it may help to dry them out.