Herpes can be a nightmare,,, especially shingles ----- my family has been using this chemical for over 30 yrs, spent over $1 million trying to get FDA approval and ran out of money doing it. Don't bother googling it, you won't find anything. You can order it on amazon if you have a business acct, I used to buy it in Austin, but they quit carrying it -------- simple,, as soon as the herpes breaks out put some of this chemical on some hand cream and apply it to the skin. Normally within 1/2 day the problem will be solved. Seems so simple it is crazy, but it works. When you apply it, and you feel it burn a bit, that means it is working.