As someone who has suffered with the skin end and the internal end of Lupus I can share with you what I've learned. In fact, I even did have iriderm laser done with varying results a year and a half ago. Yet, that only stirred up more lesions in the scar tissue, which is what often occurs with any wound we get. Most dermatologists now know this.
Anyway, I would suggest that, perhaps, you try acupuncture if you're leary about the surgery. In many cases, insurance covers it and it provides almost instant relief. It has also been very helpful in treating lupus patients. I have some resources and stats if you'd like to explore them.
I understand your apprehension and the wall of mystique regarding answers. The truth is most doctors don't know enough about autoimmune disorders. They know only how to treat the symptoms. Occasionally, you find one schooled in all techniques who listens to you.
Best wishes in whatever you decide.