Hello,
I suggest they do lung drainage and liver drainage along with a candida protocol. They will also need immune modulation. There isn’t much i can legally suggest without working with the child 1 on 1 however some basics will be Probiotics (I like Genestra HMF Multi Strain), Genestra Echinasyr (provided they dont have autoimmune), Cod liver oil, Digestive Enzymes, and Amino NAC.
Diet plays a huge role as well so cutting out all gluten, dairy (so important) and sugar!