Protect the hand while using ointment inside the ... on the A. Fissure

Do I need sterile (examination) gloves to protect my hand against the anal bacteria while putting ointment on the anal fissure? Or do just normal non-sterile gloves do it? I mean.. inside there, it is definitely not sterile lol, but maybe it is better to be sterile to not bring other germs or stuff inside? Or is there another option that just didn't occur to me by now to protect my hands? I just don't like to wash my hands 5x in a row because of the disgusting bacteria to be gone for sure. Summarized I would say I need to put my finger 3-6x per day into there because of applying ointment, lubricant before pooping and maybe i use an suppository in addition.... so i need to find a way to protect my hand. I use 1 hand in total for all stuff.