Alison,
This is a kid that could likely benefit from prescription antifungal therapy like Fluconazole. However, I would suggest getting him back on the Biocidin, and add in some soil-based probiotic like CoreBiotic from Researched Nutritionals or ProFlora 4R from BioBotanical Research. My suspicion is from how he is reacting is there may be an underlying clostridia problem.
Curcumin is good and the SPM products looks fine.
Take a look at the information in Module #12 with regards to high dose Ibuprofen. If you are not comfortable doing higher dose Ibuprofen, even just over the counter Ibuprofen at the dose recommended on the bottle for age and weight could be beneficial.
Dr. Woeller