Dude, I got them when I was 24 from putting too much stress on myself to become a millionaire trader. They are a mother ****er! And came back several times when I'd stress out. Docs gave me the same stuff, it'd keep it from spreading and they'd subside, but then come back until I finally did my own research.
Get some DMSO and start applying it to the area infected. It kicked shingles ass for me and never came back. I was grinding up IBProfen and applying it to the skin after I rolled it on for pain relief. I asked the doctor about it and they said it used to be an old treatment because of something or another they stopped using it and that I shouldn't use it. F*** That! It works.
https://www.amazon.com/DMSO-3-oz-dimethyl-sulfoxide-Roll/dp/B005R4YB9K/ref=sr_1_3_a_it?ie=UTF8&qid=1478094316&sr=8-3&keywords=DMSO+Roll+OnI feel your pain, man. I wouldn't wish that on my worst enemy. I have scars, and I occasionally still get tingles in the area because of how bad I had it.
CAUTION!: Make sure you clean the area first. DMSO basically takes whatever else is with it right into the blood stream (that's why I'd crush up ibprofen and apply). So if you have some other substance that is harmful if it's ingested on the area, then it'll get absorbed into your bloodstream fast.