A flareup is when the intestines become inflamed, and you experience all the symptoms in full force. Remission is when the inflammation is in check, and symptoms are minimal. Intestinal inflammation can be caused by a weakened immune system unable to fight the presence of certain bacteria or fungi that are known to cause inflammation, this can be quite indistinguishable from UC, but it is not generally considered UC. UC is believed to be
a heightened sensitivity or over-reaction by your immune system to a real or perceived presence in your intestines, where your own immune system attacks the lining of your intestines, giving you a general overall surface inflammation of the large intestines/colon. Many treatment options are available, and doctors usually try hit or miss until something works for you. In general, steroids or immume suppressant drugs are used to hinder your immune response. Anti-inflammatories are used to help heal and maintain remission. And while medical doctors cannot see any association that diet has on the contents of the large intestines, many of us find relief by avoiding certain foods. And of course holistic approaches such as various herbs are often recommended to facilitate the healing process. Surgery is a last resort if your symptoms cannot be controlled and the quality of your life reaches the desperation stage. Colon removal is the ultimate cure.
My advice is to read everything you can about the foods people say trigger their symptoms, and be very cautious if you decide to eat them by watching how you react to them.

BULLSHIT!
I have had my colon removed less than nine months ago. At that time I weighed 120lbs (for a 6'2" Male!!!!) and was DYING. Since then I have eaten anything and everything I want-- donuts, soda, pizza, whatever (supplemented by plenty of healthy foods too, of course). I am at 160lbs, putting on tons of muscle, and living a normal life. Driving, being with friends, going to parties, taking classes-- though spending a good 8 times a day in the bathroom of course, but whatcha gonna do?
Kill the colon and be done with it all.