I agree with the reference you gave, David, homeopathy is an absurd pseudo-science: the healing substance used is so diluted, that not one molecule of the substance remains in the diluting liquid, so how can it do anything? The claim is that the molecules of the substance somehow have "transformed the physical properties" of the liquid during the dilution process, but this is absurd, it is not science!
For myself the jury is still out......science is strange and they change their minds all the time.
Who knows how science will view Homeopathy in a few years.?
The placebo effect itself is a very strong and valuable one.
However Homeopathy has sadly never helped my skin and neither has chinese herbal medicine.
BUT...Homeopathy does seem to help me with trapped nerves and stiff joints....weird.
( But of course these things may have got better overtime on their own anyway....)
T