Ask your husbands to wash off traces of excrement and urine, as I am shy to tell them, for the Messenger of Allah used to do that.

The Prophet (PBUH) went out to relieve Himself and I followed Him. He did not turn around, so I approached him and he said: Bring Me some stones to clean myself with or something like that, and do not bring me any bones or dung. So I brought some stones in the corner of my clothes, and I placed them by his side and turned away from Him. When he finished relieveing Himself, he used them.

If anyone cleanses himself with stones after relieving himself, let him use odd number of stones.