"Keep an open mind, but not so open that your brains leak out" Steve Olberg
I haven't tried any alternative medicines, but then I've tried very few traditional medicines, either. There is a very broad, cross-cultural body of anecdotal evidence in favor of accupuncture and chiropractic medicine, so I would give them more creedence than (for a made-up example) some new-age pulled-out-the-butt proclamation that crystals can cure heart disease if you carry the right crystal in the correct pocket on the right phase of the moon, but only if you believe.
My ex-wife's baby got great benefit from going to a chiro. She noticed that the baby was a lot less active than her twin brother, and showed very little interest in picking up her head and looking around. The chiro did a very gentle massage adjustment on the little girl's neck, and afterward, she was able to do more active baby things.