How many LLLT sessions have you had so far?

I don't know if it will work for your condition or not..
It did work great for my soft tissue, tendon/ligament pain.

If you aren't seeing improvement after a certain time frame , I wouldn't keep going just because the treatment provider thinks /says it will help..(just $$$ for them and no help for you)

You might think about naturopathy or some other alternative therapies..

What kind of toxic chemicals caused the burns?