Okay, so some pre-question information: Her name is Elora, she's 16 months old, around 22 inches long, but I'm not sure of her weight. She usually eats one fuzzy per feed, although she's getting big enough to advance to the next size up. I use the Eco Earth coconut fiber substrate. The warmest side of her tank is 87 degrees and the coolest is 80. She likes the stay in either the coolest side, or in the middle.

Every time she goes into shed (this is her fourth or fifth time), she gets a bunch of dirt stuck in her mouth. Elo is super docile and sweet, so she lets me kind of gently pull her jaw apart to look inside, so I've found that all of the dirt remains in the lip area. The issue is, I can't crumble it off, as it's caked on there like some kind of mucus, and it ONLY ever happens when she's in shed. The shed lasts a while- we went to the vet last time to get it removed, which caused bleeding, and after that she finally finished shedding (after a two month period). She doesn't seem to have any problems breathing, and she's acting normal in all other aspects. Any ideas what's wrong?