My laser use developed from the idea while playing with one of my kittens last year (Weezie). My husband bought her a little toy laser and it was about that time that we started talking about light therapy here.
I looked up various papers on the validity of the lasers/or LED which the latter are often palmed off as laser therapy. So I worked on my feet while playing with Weezie. There was some improvement so I bought one of the heavy duty pointers that are now available for $2-5.00. I purchased mine on Ebay with free shipping for $2.89. It is much much stronger/intense than the cat toy one, and works much better. I do it when watching TV.
I know my feet pretty well, an have figured out where to point it.
My son looked at it and said it is the same as the $150 pointers that came out about 10 yrs ago. I even found a site selling the same type I have as a pain reduction tool, and very expensively, I'll add.
Using the one I have-- it has a field projection of about 2-3 mm width..it is a red bar not a dot close up. So it is rather labor intensive, but when watching TV it seems not to matter much.
I did it as an inexpensive experiment. I tend to do that with my PN and arthritis pain. I'd say my pointer is best done if you understand the nerve distribution in the feet/ankles so you know where to point it. The Northcoast Footcare site I put up here often has anatomy, of the foot, so studying that I pointed it where I thought I needed it and it works. It is best for localized pain, and I don't use it for all over "burning". Shooting pain in the ankle, toe or achilles area responds for me nicely.
I am looking at Amazon this morning and see this Low Level laser for acupuncture without needles!
I might spring for this. It wasn't there when I looked several months ago, and is affordable.
This one is even less expensive!
These stronger ones would have a higher danger for the eyes however.