I've been on Humira for 6 months. One dosage pen every 14 days. I didn't have such luck with it closing my fistula. In fact, personally I doubt the drug is effective in reducing my inflammation, but it's hard to tell as I don't get many apparent symptoms. Maybe if my dosage were tweaked like MikeinBklyn, but my insurance wont cover it. That's only my experience; just one instance.
Similar to what Jessy experienced, I'm now just hoping for mine to close naturally because surgery doesn't seem like a solution and my insurance won't cover the expensive biologicals.
Patience...for sure, as a recent college grad waiting to get my start at life...thats what I've learned to embrace. When you have this disease its hard at times to really believe in anything, but we still have to hope. As such I hope Humira works for you!