First hand experience of homeopathic remedies ?

There may be a correlation between the "treatment" and an improvement in the underlying situation but the likelyhood of there being a substantive causal link between the former and the latter is slim to none. Perhaps if you had held off things might have improved anyway? Or if you had independently treated your son with water or some other sunstance with no active ingredients and saved your money? If you are still happy to pay over your money for nothing then I can give you my account details and I will happily accept donations.
 
zero scientific evidence which would be easy to find if such things worked.placebo or getting better anyway is what happens.