Excuse me but your doctor is insane. If you don't believe us, get a second opinion from a general doctor about the dangers of continually taking anti-biotics.
I took these two for a bladder infection, and now I've lost 50% of my kidney function due to scarring. I came down with systemic candidiasis, leaky gut, congested liver, you name it. Took me awhile to get back to health, and the regular medical doctors were NO help. They just wanted to put me on more drugs.
Diverticulitis is easily cured with colonics, deep enemas, fiber, and judicious use of laxatives. Please do yourself a favor and get a book on bowel management, I enjoyed the one by Dr. Bernard Jensen .