Do you know enough of your basics to cast a spell properly? If you know your basics well enough, my best suggestion would to create and write your own spells. They work better because you put your own special energy into the spell and has not been used by someone elses energy. That is always important when creating or casting spells or rituals.
But i am sure there are healing spells on here but remember to overly check them first some have been posted as fluff or fake spells. But like i said i would just create your own is your best solution.
I was just looking at healing spells and I have to agree with all that. Some bad ones have been posted. However, there's some good ones too and it doesn't hurt to look. You may find one that will work for you, or maybe you'll get some ideas on how to write your own.