I had LimeLight laser done to my upper arms a week ago and now have burns. This is how it looks currently. (Photo)

I recommend following up with a cosmetic dermatologist for after care. I recommend Silagen + Bioshield to promote healing. This can be improved with a combination of vascular lasers like yellow laser, Aerolase, microneedling/prp, skin lightening, peels, and skin care. Sun protection is essential. See an expert. Best, Dr. Emer

Whoever did this procedure used wrong settings and had very poor spacing.  You should be treated for these burns with a topical antibiotic and a burn cream.  I recommend that you schedule an appointment as soon as possible with the supervising physician where this treatment was done.  Best of luck to you.

Thanks for your question and posting pictures.  You were badly burned.  They used the wrong device and / or settings, plus had incredibly poor technique.  You should follow up with the supervising physician where the treatment took place.  They should come up with a comprehensive treatment plan for your recovery.  Best of luck.