You might be leaking a very slight bit when lying down; this can cause the BB by drying on the skin. Try using a barrier cream such as Bag Balm before bed.

Hope it gets better!

Gin

I think I understand what you are saying. It's not butt burn on the outer skin it's the feeling of burning on the inside of anal canal. And as I Kay there it feels like the Stool goes into the canal and sits there burning and every time I try to use the restroom it doesn't all come out and it hurts!!
I experience this often and can't bare it, just like last night. I'm in so much pain,hot baths etc...don't help.

I get the same thing too. It usually wakes me up. Does anyone know what it is and why it burns so much as it's coming down?

When I get butt burn, severe or mild, I know it will be gone when the food which caused it finishes leaving my body. I never know which food/drink that is but just knowing the end of my "misery" is in sight is enough for me to withstand it. I do use a barrier cream during those episodes if I need to be out and about. otherwise, I just "grin" and bare it! (Kidding about the "grin" part!) Good luck to finding what works for you!