I disagree with Oscar on the B12 issue. The synergy between BHT and B12 was independently conformed by Ward Dean decades ago. BHT is lipid-soluble, B12 is water-soluble, so they work in different compartments in different ways. But both are classified as antiviral (catabolic, aerobic, acidifying) by Emanuel Revici's metabolic schema.
I had a shingles outbreak in my 40s due to allergic/toxic exposure to urethane adhesive. Trigeminal outbreak, two of three nerve paths, which responded quickly to BHT and B12. At 24 hours, the redness was dramatically reduced. By 48 hours, it was almost natural skin color. BTW, my outbreak was highly atypical in not being in any way painful. No pain, no itching, no neuropathy, only skin lesions. I had natural chicken pox as a child, so this outbreak was likely shingles. It was diagnosed as shingles by visual inspection by MD. And no shingles outbreaks since despite 25-30 years of aging.