M-i-L brewed a chrysanthemum concoction that she swears will allieviate Maui's urinary problems. It's worked on her human 'patients' before, so it's got to work on cats too.
I can't help feeling a little skeptical of the claim. There is a superstitious association in that the colour of the brew happens to be the same colour as pee, hence input is equivalent to output. Secondly, the fact that people are imbibing larger-than-usual amounts of the brew is probably what is causing the increased outflow at the toilet.
That, of course, is my logical brain at work. The emotional part of me is grateful that more people are taking an interest in doing something to help the boy. And save our floor and furniture from the ghastly yellow peril that follows him wherever he goes. Ew.