Well, I don't like 80% for something of such weight, but 2 months sounds absurd for an outbreak. Though I'm no doctor, I don't think your doctor is incorrect.

That being said, what are they like? Are they painful to the touch? I'd wager it's an ingrown hair or, perhaps as doc said, a reaction to something. Can you think of any changes in your routine that would coincide with the start of these things?