Candida is usually secondary to other things, such as heavy metal poisoning. Has he done the "xenobiotics" panel on you? That might help. Candida is a red flag for other imbalances too...colon, gut, digestion, etc.
That said, it seems that the most dramatic results on the SCIO are realized when doing *emotional* clearing and using those panels. So he may want to give those a go. There are hundreds of emotional clearing things he can do on the SCIO.
Also the NLP panel may help. And also the spinal.
but again, it was something that seemed obvious to me but was pointed out to me by a person who has mastered the SCIo and who teaches high level courses....do the emotional stuff on the SCIO and that is where you will notice the most dramatic results. Especially for something systemic like candida.
Good luck...it sounds like your guy is getting pretty frustrated...I have been there.