I stopped before I saw any bleeding because I saw a piece of what I thought was gum tissue come off the inside of his mouth. This was probably the scab tissue Steve is talking about, and it got better soon afterward. Also, my hands shake pretty badly, so I didn't want to risk harming him. Yours is much bigger so it shouldn't be as hard to do the procedure right

Even after you stop actually treating the infection, it's a good idea to keep an eye on the mouth and swab it out with just water every few days. Sithis' mouth still doesn't have a great seal on it and little bits of dust and junk get stuck in it all the time. Once they've had a mouth infection they're more prone to them in the future, so it's good to keep an eye on it for a while.