is it even possible to get them in either of those places?
Snot got banned for proving how possible that is.
You can get entrepreneur les anywhere on or in your body. Inside your body is what people call a "cyst" it's basically the same thing but has no external hole to leak out of. I've had one in my neck that had to get removed.
I also had one inside my earlobe but the earlobe is so thin. I was able to create the hole with a pin.