Trying to clean inside an appliance while you’re still wearing it is largely a waste of time (not to mention near impossible). It would be best to wipe inside the pouch end with toilet paper after each empty and before closing to avoid odor. If stool is ‘pancaking’ inside or near the top of your pouch, you can use a plastic squirt bottle of water to rinse this out. (Take care not to flush water around the stoma as this may get under the flange.) Adding a few drops of ostomy lubricating deodorant inside the pouch before applying it helps stool slide to the bottom rather than collecting at the top.
If you wear a flange with a two-piece system, sometimes the inside of the ring can become soiled, which bothers some people. Q tips can help clean this but don’t make yourself crazy trying to get the flange ring 100% clean. You can break the seal if you scrub it too hard. You’re going to cover it anyway once the pouch is applied.
Urostomates should rinse the night drainage system every day — it’s advisable to use a mild vinegar/water solution and flush the tubing and collection device. Some manufacturers also market cleaning products specifically for your urostomy night drainage system.