Oct 2, - Don't have anal sex if your anus isn't clean and your bowels are still full. make anal intercourse more comfortable or easier to do, but do not. Rectal douching is the act of rinsing the rectum with intent to clean it, typically in preparation for . "Prevalence and types of rectal douches used for anal intercourse: results from an international survey". BMC Infectious Diseases. 14 (1): Risks · Technique · Frequency of use.