My mom had incontinence issues related to her stroke-related dementia.
Whenever traveling, we would set up "bathroom kits" that I would create in a gallon zip-lock bag. It would have:
- a fresh pair of briefs
- a pair of nitrile* gloves
- a small supply of wipes in a sandwich size zip-lock bag.
- a fresh, clean damp washcloth folded in a separate ziplock bag. (You could also substitute a clean cotton bandana if you prefer)
Because Mom sometimes got emotional during toileting (side effect of her strokes) I always popped in another sandwich bag with a few tissues folded up, but that's optional.
In two separate 2-gallon zip-lock bags I would put one pair each of the soft knit pants she preferred to wear in case we needed a wardrobe change. As the day progressed, I would keep/consolidate any "extras" from the toileting kits that we didn't use, and place soiled briefs, wipes, etc. into a ziplock to dispose of. Soiled washclothes went back into a ziplock bag for laundry. By packing everything "flat" in ziploc bags and squishing all the air out, it makes it super easy at Security/Bag check as well; they can see all the contents of every bag, and so won't have to go rooting around through everything.
Typically, everything fit nicely into a backpack that we hung off the back of her wheelchair.
*we only carry nitrile gloves so we don't accidentally expose someone with a Latex allergy to a trigger.
It sounds like a lot - and the first few times we made the "kits" and put everything together, it was kind of overwhelming to try and figure out what we would need. We also would change the kits based on our location and destination; for trips to the doctors office, I would bring along some toilet paper from home because she hated the paper provided in the restrooms there.
Bring what you need - and especially what *she* needs - to feel comfortable.