My BP burnt her nose any advice.

[Armiyana]

Following up on the burn itself...
It didn't look like too terrible a burn but they are deceiving!

Is it still just the way it looked in the first pictures? Has your snake eaten since the burn?
If your snake burned her tongue as well, that can cause some eating issues.

Has she shed since the burn? Usually it happens with body burns but the nose burn may be small enough that it didn't happen....but most times after a burn ball pythons go into a shed phase almost immediately. The skin right now may be protecting the actual extent of the injury. It may be small enough that the burn will heal and shed out normally when the time comes.
In the meantime, still keep a close eye on the area for any fluid seeping or swelling. If it starts to look like a blister, you will need to take her to a vet and have them debride the skin from the wound underneath to start an antibiotic treatment.

[Bogertophis]

I just remembered the brand of insulated kennel pad I've used in the distant past, & they're still around with an even smaller size, FYI. They're from K & H
Pet Products and are known as Lectro-Kennel Outdoor heated pad. A small one (12.5 x 18.5") is currently on "sale" for $40.57 on Amazon, reg. price $70.99.
In case anyone is interested in a heat pad that CAN be safely used inside a cage? Just another option.