Alternatives can be effective enough to have documented counterindications with conventional medicine. A lot of conventional medicines come with directions to stop taking xxx alternative medicine, because taking the two together can have an enhanced effect that isnt within the scope of the prescriber's understanding. (I mean, they understand the effects of the alternative medicine, but it is rare to have combinations of drugs and alternatives with documented results indicating safety and effectiveness across a broad range of clients.)
Long story short, go for things with a long history over a short one

And consult your physician before you self-medicate
