Scab? Scale rot?

Noticed this has been getting larger on my friends bp. Its only a few milimetres in length She has a couple of other scab like dots but http://img.tapatalk.com/d/12/12/09/ahubuteg.jpgnot as large. It is hard to the touch. Any ideas?

Almost looks like a burn.

The thing is, the heat lamp is outside the enclosure, and the uth is controlled by a thermostat. It is also weighed down by a hide and log and I see no way of her borrowing under. (Nor have I seen her do it) :(

Where are the other spots located?
I would try cleaning it with betadine.

Is her substrate wet?

You sure they just showed up? I rescued a BP from CL that had a big rat bite scar & the skin in that location looks a lot like that mark.

Does it have any in the belly?

It does kind of look like a rat bite healing up. If there are other small ones, that would make sense. A burn wouldn't be a single spot like this, and scale rot doesn't usually occur on the dorsal scales.