[Shannonmcn]

If it's just a bit red and his poop is normal I would be inclined to just... Keep an eye on it? Unless there is mess or blood or broken skin around his anus cleaning it with anything might just make it more easily irritated as well as stressing him out. There's no swelling or bleeding or blood in his nest or anything?

The skin there is obviously very sensitive so it might be worthwhile also keeping an eye out for scratching or skin redness elsewhere since it might be more likely to be a reaction to maybe a new bedding or something that's come into contact with his skin rather than a digestive problem.