So, some people start with active ingredients, don't dilute them out of existence and still call it homeopathy - presumably to make use of homeopathy's "good name". I'd argue that it isn't really homeopathy but I'll admit that it confuses the issue. The "like helps like" theory, as it is applied by homeopaths, is pseudoscience. Perhaps not quite as egregious an example as "water can remember stuff you put in it", but still pseudoscience.
The "scientific" formulation of "life helps like," as I've heard it, is simply "symptoms to diseases are actually signs of the immune system attempting to work. Rather than stifle them, one should encourage them." So, for example, when you have a cold, rather than take medicines to force your runny nose to stop running, one should take things which encourage the nose to run more: the running is a sign of the nose trying to purge out whatever you caught, and blocking it up only prolongs the disease period itself.
Now I'm not saying that's correct at all as a medical model but formulated *as such* you can see why it was not dismissed as total quackery by my professors. Of course the diluted aspect is clearly pure unscientific nonsense.
Anyway, I'm no expert on homeopathy or alternative medicine, so I'm not going to comment too much further on this, I'm just relaying what was relayed to me, but it seems to hold fairly well. Hence "homeopathic nasal spray" will actually make your nose run more than it did before, as anyone who has tried it will attest. But anyway, this may have been "diluted" several times from the original practitioners to the formulation I gave above, and may in fact contain a marginal amount of the original input, to use a metaphor. ;-)
FF