Health is like anything else, and reads like anything else.
If a querent comes in specifically for a reading about health, I'll choose the Herbal Deck, and it'll give a cracker. But usually if they don't specify a given issue I'll do a spread that is basically a series of three-card readings on a number of subjects, health among them.
I just did a sample three-card reading on health for my brother to demonstrate, using the Quantum for no other reason than it happened to be sitting right on my computer, and I would have had to get up to grab another deck.
The first card is the health issue of the moment: Two Swords. This indicates that Alan is not over the lifetime pattern that caused him to have his series of massive and nearly catastrophic heart attacks late last year: He is not looking at the real issue, which is not his diet, or his exercise or even his smoking, but is the many litres of tea with two heaped TABLESPOONS of sugar that he drinks every day, and the pot that he's still smoking after his cardiologist told him to give up cigarettes. Also, his habit of working himself into the ground isn't helping, nor his inability to ask for help. He thinks he's fixed the causes when he obviously hasn't, which is very Two Swords. I also see this card as often indicating being at crossed purposes, and again that seems relevant to Alan's cardiac health, with his bon vivant manner overlaying his fear.
The position that indicates the Way forward is the Nine Wands. Alan is in danger of losing the joy in his life through overwork (a long-term thing) and the lack of cigarettes and fatty foods (a short-term thing). In order to maintain his recovery, he needs to find acceptable pleasure-substitutes in his life.
The third card-position is lifetime tendencies, and here we have the Magician. The Magician tells me that Alan's health is completely in his hands: it is not a card of illness, or of recovery, or of being accident-prone, it is a card that tells him he already has the tools and knowledge he needs to effect sweeping change in his life. It isn't, however, the Strength card, so he is greatly challenged by his lack of self-discipline. He cannot put his long-term recovery and cardiac health in the hands of doctors: he must take a pro-active role himself.
There we go - a cracker of a mini-reading on health, and one that will acutally be useful to him. Pardon me while I cut'n'paste, then scamper away and email him.