Sorry to hear about your son. Hope he gets well soon.

One remedy that I know of which helps to deal with pretty much the majority of infections is colloidal silver. The "Sovereign Silver" brand makes the purest form of the colloidal silver, whereas other brands tend to make the cheaper ionic silver tinctures, which are not as effective. Check it out and do some research.

Also, monatomic gold tinctures are a great way to stay healthy long-term. Make sure to do your own research on this one.