Rubbing alcohol is safe to use on your phone screen but you need to mix the rubbing alcohol with some water first to dilute it.
Then use a cotton ball or microfiber cloth to wipe the phone screen clean.
Never pour the mixture on the phone screen or spray the phone screen with the rubbing alcohol as it could damage it.
But wiping it with a cloth with the rubbing alcohol and water is safe.
You can also use baby wipes to clean your phones screen too.