If you ask any spirits to heal somebody always make sure you have that person's permission. Its just a basic standard of ethic. If you didn't catch nero's meaning he means sacrific (not trying to put words into your mouth). This can litterally even be money that you bury out in the country. It can be as complex or simple as you feel neseccary. Since finding names of specific spirits that can heal might be difficult you may work with God forms instead. Mercury is an example of a God form that can heal.
--------------------
|