The beginning of it all

Harry James Black is a Healer who specializes in many things. He had hoped to move on and live a peaceful life away from his first home at the hoggy woggy Hogwarts. And mainly from the one and only Severus Snape. But when Madam Promfrey comes to ask him to take her place for awhile will he accept the job and be happy? Or will Severus Snape take the reins and turn his life upside down once more?