Methylcobalamin B12 may help alleviate symptoms of post-herpetic neuralgia
https://www.slideserve.com/bobbiehrjo/how-to-incorporate-more-vitamin-b12-into-your-diet-13557316
Methylcobalamin B12 may help alleviate symptoms of post-herpetic neuralgia, a type of nerve pain that occurs after a shingles infection