This sounds similar to the near-infrared LED therapy that was discussed earlier this year. The light spectrums used in the linked article are red to infrared which is both sides of the near-infrared spectrum. I wish the article explained more about the benefit for neurological injuries. The near-infrared LED therapy is believed to stimulated the mitochondria.

Laser therapy has been used for joint injuries for quite some time. Chiros often use it. My PT has used it for a decade or more. It is an inexpensive system with minimal risk if used at proper dosages so it does not require a highly trained therapist. There are LED systems for use at home that sell for $600 to $800.

We have had a few who have been treated by Dr Khan here on NT with varying results.