That does sound like shingles- the blisters can last a while, unfortunately. Are you concerned about getting it again after it's cleared up?
Yes, it does sound like it could be shingles. I noticed that you mentioned in another thread that you have genital herpes. Like herpes outbreaks, shingles can be triggered by stress and/or a weakened immune system: https://www.healthline.com/health/shingles-and-stress#connection
Shingles is nothing to take lightly, so if your doctor recommends treatment, it's probably best to follow it. If it is, in fact, shingles, you may wish to talk to your doc about the shingles vaccine to prevent future outbreaks.