I think I've had one of those. Mine became "active" again as if it were dormant. Eventually, it went away like normal (pus coming out and flattening).
what did you apply to it and how often and/or did you leave it alone for an extended period of time ?
I was using benzoyle peroxide and I would apply it twice a day (morning and night before bedtime).
I forgot to ask .. were you treating it continuously while it was 'dormant' or it came to a head(pus) on its own and then you started applying the bp ?
edit: I noticed you use sulfacet-r .. I used to use this back years ago when I had a bout of acne and it worked really well .. so it's still prescribed in Canada at least ? .... would you happen to know if it's still prescribed in the U.S. ?
Yes, I treated it continuously even when it was dormant.
Sulfacet-R is available in Canada, I don't know about the U.S though..