Lori...use the Rowasa for at least a few weeks...nightly....I don't think you need to do them twice a day for now. Sometimes you can do too much and that can cause some symptoms.
You can always increase or maybe do an extra one every 3 days or so.
How much asacol are you on?
Hang tough.....you're not flaring too badly....patience...although it's difficult when you were in such a bad state before. Do you have lots of refills on the Rowasa? Call the doc to make sure you do to get you through the next few months so that you don't have to stop cold turkey.