The problem with self-medication is that it doesn't get coverage when it doesn't work. And it rarely gets coverage when it makes things worse.

Faecal transplants have been tried. And we know that it works sometimes. The problem is that it also sometimes does great harm.

There is currently no way to separate and categorize the good flora that helps from the bad flora that can harm.

This is, however, an active area of research. Sure, it could be going faster.

But, of course, the US is busy wiping out the NIH, the very people who fund this kind of research ...