Part two of suggestions from above,
I use certain underwear and also use a pad that sits in the center of the briefs. I use adult diapers if I am having a flare up that seems to last more that 12 hours and also use these after any surgery, thaing them with me to the hospital. It is best to go to the effort to find diapers that fit you right away, try them out and have these and the pads on hand. Know where you can easily get more , should you suddenly need them. sometimes you might order these, the order payment go through and then you find out that they are not coming for weeks.
Keep the necessary toilet cleaning aids behind the toilet hanging or close by. Have a hamper or trashcan filled with pads and diapers near the toilet, and a lined spring lid waste can near also.
Planning ahead and having all the supplies can take the stress out of living with these conditions.
I hope this is helpful and does not offend anyone.