First of all I have to say that I personally use both mantras and sutras to heal myself and my loved once. They work for me.
This time precious advises
1 -By Lama Zopa Rinpoche
2 -By International Academy For Traditional Tibetan Medicine (click "TTM" in Navigation bar) http://www.ngakmang.com/
And finally precious registration of Sutra Of Pain, Vaishala Sutra, recited by
Lama Zopa Rinpoche.