Acne
"As far as the medicine doing what it is supposed to do, it&#039;s great.  It dries acne (even severe acne, in my case).  Unfortunately, it also caused me to have systemic side effects - rare, but they do happen.  I developed ringing in my ears and had to stop using it.  After a month I tried using it again, and the ringing returned.  I&#039;ve been keeping careful track of my usage of it and the episodes of ringing in my ear, and they match.  I&#039;m probably one in a thousand that this has happened to, but being a musician, I need to be able to hear.  My dermatologist and I will be meeting next week to discuss this and see if there are any other options for me."