Don't assume healing time. There is no way to know the severity of your nerve damage. I have the corded handheld light with 72 LEDs sold for pain relief. It cost me $84 after 15% discount off the $99 sale price. I use it twice a day for 15 minutes. The facial systems (acne and aging) are not the wavelength suggested by research.

The Vitamins sticky says dosages. 1000 to 2500 mcgs of B-12. A B-50 Complex has the proper dose of folic acid.