Hello,
I have to agree, that is most likely a burn. The 160 watt Powersun is probably getting too
hot at that distance.
We recommend using either a digital probe or a temp gun to measure basking spots, etc
or a combination of them both for the most accurate readings.
Definitely continue to use the raw, unpasteurized honey to help with the burn & hopefully
the infection will clear up soon as well.
Tracie