I haven't had it, but my son had it for about 3-4 months. He wasn't on antibiotics when he first got it...it's just something that some babies get, and their immune systems just can't kick it. His was reallly mild, and would go away, but when we quit using Nystatin, it would come back.
Status: Remission since late May 2009!
Symptoms began in November 2008, ~4 weeks after giving birth to my son.
Diagnosed with pancolitis on 1/30/09
Currently taking Apriso (4 pills ONCE!! daily), Rowasa twice weekly, Natural Factors Ultimate probiotic 12/12 Formula, and Zoloft (25 mg).