use the toilet brush ;-)
You need a Bodea
There is something called EASYWIPE, and it is basically a elongated plastic handle
product that one uses to wipe one's bum. I have some issues with it but it does work reasonably well. I believe the UK manufacturer is Buckingham...the cost is about $60.
Toilet brush! Ow! *L*
Since I contracted rheumatoid arthritis I have had problems with lots of things
One just has to learn to cope :)