My name is Siew Chong and I'm new in this group. Your advice and experience with aloe is remarkable. My son was operated successfully last year for brain tumor. He had been healed and cured. I've modify his diet significantly, supplemented with immune boosting preparations, alkaline water, organic foods(as much as possible + antioxidants and etc. Most of the supplements I've obtained from the STATES via online purchase. If you have any specific recommendation for him (4-yr old), that's is very much appreciated. I was told Revastranol, quercetin and lipoic acid are helpful. Any product recommendation?