Some people claim that specific herbs may kill some parasites and worms. They suggest that some herbs may also help in clearing your colon of some residual fecal matter. However, herbal preparations are not suitable for every person who may have a problem related to their digestive area.
Also, they do not act instantly and you may have to follow a specific regimen for months to get results which will, of course, vary between different people.
Starting a Colon Cleansing Regimen Fasting is claimed by some people to be a good way to start a coloncleansing regimen. Fasting is claimed by them to help quicken the pace of waste removal from your body.
Source of Information : Your Guide to Colon Cleansing by By Peter Mason