If you are having family come in March, perhaps you can order a cleanse online and have it shipped to them to bring it down to you. I think a colon cleanse would be beneficial at this time. Ive noticed no one has really mentioned colon cleanse and reading the post on cleansing, it suggests that you incorporate colon cleanse along with liver and parasite cleanse. This may help him with his bm.
Continue to keep us posted and I pray that there is resolve to your husband's situation soon. Praying too will help.
Also, it would probably help to avoid foods that may carry parasites such as meat.