Homoeopathy — is it snake oil?

Apparently some recent scientific experiments have shown that most complementary treatments (and in particular homoeopathy) are ineffective compared to conventional treatment, which I’m perfectly prepared to accept — many of the alternative treatments seem to be juju administered by money grabbing witch doctors. What I can’t understand however, is a placebo effect working with hay fever. I’ve tried so many different conventional pills and potions, and, apart from some very dangerous injections I had in the late ’70s, nothing has worked, until I tried homoeopathy. And hooray it seems to work. I have three injections in the winter of what is to all intents and purposes, water, and then by some kind of magic I have a relatively sneeze and itch-free summer.