Non-genital Herpes

Hi, I have a spot that for 2 years has appeared just at the tailbone area, above the cheeks of my buttocks. This spot will appear about 2-3 times per year, and will it appears, it will go away usually within a week or two. I went to my doctors office yesterday as the spot came back up the night before. The doctor told me it was a virus, and then explqained that it was Herpes HSV-1. I am scared and confused, she state that it was nothing to be so worked up about, that if the spot hasn't appeared anywhere else in over 2 years, she doubts it will ever spread elsewhere on my body. She also stated I may have contracted this through a public tanning bed that was uncleaned when I got it , as when this spot first appeared years a go, I was going tanning a lot. Do you agree with any of this? I am a very clean and particular person, and have no clue how this could happen, and I don't know what to do