Boyfriend in pain, willing to cleanse

My boyfriend has recently starterd experiencing extreme back pain. He's at home right now and just called me at work saying it hurts unless he's lying down. It's mid-upper back on the left. We think maybe his liver or gallbladder.

I've been trying to get him onboard with these cleanses but he's never really trusted my word until now.
He's interested in doing a Liver/Gallbladder flush, but I'm worried about the preparation, as I'm certain that he also has parasites, and possibly candida (really not sure about candida).

I don't know how many times I've read up on all the cleanses, which order to do them in, etc. etc, but I'm just not sure if he'll make it if he has to go through a bowel cleanse, parasite cleanse, kidney cleanse before finally getting to the liver/gallbladder issue.

Would it be ineffective to do the liver/gal flush before doing the others? I was thinking maybe a short, quick Bowel Cleanse while starting the parasite cleanse, and moving right on to liver/gal. Is that a bad idea? I think he just wants to take care of the liver/gal because he's just impatient and doesn't understand that it's a process and he's got about 23 years of toxicity build up inside of him and so his cleansing experience probably won't be very pleasant. He also does not have experience fasting. I don't zap either, so he won't be zapping.

Does anyone have some advice? I'm trying to put together a series protocol for him while I'm here at work, but I just don't want to recommend the wrong things as, even though I might be a naturopath for him...I'm not a naturopath!! I'm still learning new things and myself have yet to try some of these cleanses. I will definitely be doing them all with him though.

I just need to know what the best plan of action would be. I've been planning for a long time to do all the cleanses consecutively with Master-Cleanse thrown in the beginning and end of the sequence but he's really been the one who wasn't too supportive, and skeptical of all these things I'm interested in. I want to get him oil pulling too. Anywho, he's always been very skeptical and I don't want to screw up now that he's finally desperate enough to let me try to help.