My doctor also told me there was not any specific treatment for these diabetic dermopathy spots. I had a few of these spots show up on my thighs and wanted to see how I could get rid of them.
If you have diabetes it seems to take longer than most people for these types of things to heal or go away. I tried putting some antibiotic cream on them every day to see if it would help.
Eventually the spots did disappear. I don't know if the cream helped or not, but at least it didn't cause any harm.