I'm the queen of anal skin tags, and you don't necessarily need a bidet because of them, like praying4healing said, flushable wet wipes are a great way to make sure the area is completely clean...
And you definitely DON'T want to get them removed, they are diseased tissue and I've been warned that having them cut off will mean that the area will not heal and you'll constantly have issues with that and alot of pain.
Back (17 yrs ago) that's where my CD started, not internally and my skin tags were misDX as hemmies, and I had them banded, if they'd have been hemmies they would have shrunk up from the banding, but they weren't so they didn't, it made my CD worse and then I started to flare internally everywhere, the rectom, colon and small intestines too.
Apparently, the only time that it's safe to get them removed is when they shrink down, then the doc can just snip them off because they're not flaring, when they are large then they are flaring and nothing should be attempted at those times.
My bum is broken....there's a big crack down the middle of it! LOL :)