So it's a coil? Please get rid of it - you want a long tube fixture like a zoo med w/ a reptisun 10.0 T 5 bulb or a Arcadia pro T 5 w a 12% bulb found at PetSmart or a sunblaster nano tech w a reptisun 10.0 T 5 bulb-- I can post links if you need them-- these are all good for a 40 + gallon tank - your screen will determine where the uvb is placed- this is crucial for your dragons health-- you want a 24" fixture
How long has that area on her back been there?
I agree, raw unpasteurized or manuka honey should help out in healing for her. Does it seem to
bother her at all?