Medical disclaimer in novels?

I would think  a novel, which by definition is a work of fiction, would make a medical disclaimer unnecessary. But I might just add one to the second and third books in The Scinegue Series. I talk about things as diverse as using wheat grass juice powder on a burn to using OoO to fight a demonic infection. I would think it would be pretty clear that no medical advice was being offered but now days I don't think it's worth taking a chance. I'm going to add a disclaimer to The Pledge for now and then spend some time really researching the subject. One of the great benefits of an ebook is the ability to make changes!