I know they do use tetracyclines to treat acne.
My skin has never been "horrible", but I have always had a blemish or two, blackheads, etc.
But last year, before I had any major MS symptoms.... I was so tired all the time, feeling totally crappy and my skin went nuts.... 2 instances of deep, cystic pimples, acne all over my upper back and chest. It was awful and uncontrollable. Something was out-of-whack with my bacteria levels or my body's ability to regulate or fight it off.
Then after I went into the hospital and was diagnosed, and had the solumedrol 5 day treatment (which can cause temporary acne increase! ugh) I had little whiteheads everywhere.... it was unbelievable, I had them behind my ears, inside my ears, on my face, chest and neck - even some on arms and legs.
I went on the Best Bet Diet and quit dairy and that helped quite a bit, and reduced stress to as close to zero as possible, and tried to get better sleep... but still had some pimples.
Since going on the abx, I've had ONE very mild pimple. One. I saw a friend the other day and she remarked about how great I looked... and I no longer need to wear concealer at all
I'm staying on the abx just for my skin LOL
But yes, I agree - for the MS, I can certainly do a year and give it a solid try. Nothing to lose, and everything to gain.
Now, I haven't pulsed the Flagyl yet - so when I come here whining about how awful I feel please remind me to read this post