as mentioned in my earlier post, my wife as crohns so i thought this advice may help.
she was told to carry spare underwear so if she had a situation whilst out it would be less embarrassing and more able to deal with things.
she got a key from the local council office for disabled toilets.
joined the crohns disease society which costs £12 a year and among their welcome pack was a card that says she as crohns and asks to use the private toilet facilities of shops etc if for some reason she needed to in an emergency.
alan