Homeopathic medicines are basically water floo. Hence the joke about 'mainlining' from the tap. Mainlining means injecting (heroin addicts mainline into their veins). It is believed that a tiny bit of something in water creates a 'memory' of it in the water, which then becomes medicinal.
There are more technical terems than I've used but that's basically it. I suppose ian example is iff we had smallpox a bit of smallpox diluted umpteen times in water would be medicinal (it is in a way because the vaccine comes from the disease but it isn't processed by putting in water).
Many people are into homeopathy, it's always sounded a bit far fetched and definitely unscientific to me but if it works & above all, does no harm,who's to complain. There are properly qualified medical doctors who practice it. I've never used it.
(Bet you do give your daughter pocket money sometimes, my mum regularly gave me a few quid when I was 43 to treat myself! Probably still would if she felt I needed it but my adult kids get it now& I 'treat' them too.)