I asked the same question a while ago. Many suggestions. What is working for me is a tablespoon of extra virgin olive oil in morning on an empty stomach. I also
had issues with hard stools. This seems to take care of the problem. I have been
ok for over two weeks.

I experienced real bad constipation a few weeks ago. The stool was so hard that I have no way to push it out and out of extreme pain I use my finger to dig the stool out of my anus. That sounds disgusting but I have to do it in order to let the first hard stool to get out. Now I only need Lactulose and Laxsol to prevent any future constipation .