Actually, I do see the need for a class that fills the cleric role in Hyboria. One of the problems I have noted in my games is that Conan characters lack the ability to recover from reverses that the cleric provides. Given the levels of damage flying around, an unlucky couple of rolls can take a character out of action, either completely or effectively so. With no healing, it takes some time to recover from that.
Partly, this is an artifact of my game style. I do have a fondness for dramatic scenes involving time pressure. Stop the sacrifice, stop the summoning, flee the collapsing temple, that sort of thing. In a scenario with time pressure like that, there just isn't time for the party to recover from an unlucky reverse. More serious is when one PC is taken out, but the others are fine and continue. That leaves one player sitting around watching the action, possibly for quite some time. Having an option to get them back into play is valuable.
That said, I don't think this Healer class is the best way to go about it. I'm not so worried about the cultural problems Vincent raises. His points are valid, but I am quite happy to change the label and keep the mechanics. Some do seem to view the flavour text as inalienable from the systems they explain, but I would be quite happy to just describe the healer as casting out spirits (for Shem), or balancing the chi (for Khitai) as needed and just use the class.
My problem is that the class appears, at glance, to suck. As far as I can see, it is all about Healing. Apart from a couple of minor abilities, all the class abilities are based on healing, and the poor attack and defense figures mean it is not a front line character by a long shout. So its all about the healing ability... which is derisory.
From Skilled Healer we have an add of wisdom bonus to the result of a heal check. So probably 4.
From Battle Surgeon we have d4 then d6 then d8 plus wounded character's Con, IF they are incapacitated first.
From Staunch the Blood we get d4 plus treated character's Con.
I mean, what? am I missing something? at level 7, when the Healer gets staunch the blood, a Soldier with Con 14 will have around 66 hps. With a two handed weapon and power attack, he'll be handing out around 20 damage per whack. And the Healer can give him 3-6 hit points back? Who cares? If the Healer takes the time for a full Heal check, he gets four more points back than any other person with the Heal skill. But wait... once he is incapacited, the Healer leaps into action! he can get 4-8 back then!
And this is the class' central focus? You would be ten million times better off with a Scholar with the Heal skill, and enough Sorcery to thwack the enemy before they get to do the damage in the first place. Prevention is certainly better than cure!