Moses occasionally has issues with nose wrinkles.
There can be like greyish goo in the deepest wrinkles right below the eye, where also all the stuff that can come out of the eye goes.
Normally I wipe the wrinkles daily with baby wipe and dry with dry kitchen towel, sometimes I use baby talc. If no problems I do that few times a week.
If problems starts to show...such as any slimy goo, then I clean the wrinkles on daily basis, sometimes twice a day, first clean with baby wipes and then dry with antiseptic-powder.
It is important to keep the nose wrinkles healthy, clean and "goo-free" to avoid any skin infections.