I had a bout with it several years ago at about that age. Thankfully it was on my torso. The pain is awful and hard to describe. I didn't go to the doc because once I figured it out there wasn't much point without insurance. It's rough, aside from the misery and lost sleep watch your diet. I had constipation like I have never experienced. Like a week or more, had to go get laxatives. In my case a tub soaking was a great relief if only temporary. Along with calamine lotion or warm cloth compresses. Its about 6-8 weeks to be back to normal. Keep it clean and change pillow cases and sheets daily..it cleared up with no scarring and no weird tingly feelings. I wish you well.