Can you put alcohol on a belly ring?

You should be following the aftercare instructions your professional body piercer provided to you inwriting Alcohol and Hydrogen Peroxide shouldn't be used on piercings unless you have been directed to do so by your piercer. Alcohol tends to dry the tissue out and is very hard on the new skin cells we are trying to develop. Hydrogen Peroxide generates oxygen when it comes into contact with certain materials and body matter, this can make the tissue that is forming very fragile and make it prone to needless damage. Ultimately just plain old soap and water will do what needs to be done with little risk to the piercing so long as it is rinsed away after cleaning.