: larsmidnatt is right; lamh and gh don't provide any geometry inside ds to be rendered by octane. i don't know if they export it right with the scene if you choose to export a scene to .obj. if so, this would let to believe hair generated with those plugins could be rendered with octane right away.
for any other hair object: it's just some geometry with opacity maps applied - so there should be no problem in general.
to say more, i'd need to know more about what you use and what you do, and what "not working" means in particular