I was referring to too many parasite cleansings too close together. The other cleanses you did will not affect your HUMAWORM cleanse. You really need to take the recommended 2 capsules in the morning and 2 at night. These are the correct amounts for parasite removal.
If there is any way possible, try to get your husband to take 1 capsule in the morning and 2 at night, then up it to the regular 2 and 2. One capsule per day is just going to irritate the parasites - not remove them. He is also runnning the danger of creating "super parasites" - resistant parasites that are very hard to get rid of. He is just feeding the parasites a tiny dose of "poison" per day - not enough to kill them.
The one capsule per day may be why he is having nausea - if he can't take the full dose, then he will need to stop the cleanse. I know you want him to cleanse with you, but some people just can't handle the thought of parasite cleansing, while others can't handle any die-off at all.