Interferon beta-1a
"I was diagnosed in Nov 2006.  Avonex did not work, so early in 2007 I started on Rebif.  6 years no relapses.  I would get very bad headaches on the 2 day stretch with no Rebif.  I made the mistake of stopping my Rebif for about 6 months and I had a relapse. Face is numb and legs and feet tingly. I regret stopping for the 6 months. I should have called MSlifelines and figured out how to manage the headaches.  Regardless, I am back on Rebif and will gladly stuffer a headache if I don't suffer any more relapses. If the goings good..don't quit!"