Anita,
Don't worry about the healing - wat will happen will happen. Just simply say a prayer befor you start - something like this.
"Master please come and guide me in my healing of the mind, spirit and soul and make him as comfortable as possible with his body."
I use something like this with my 82 year old friend that I see daily. I also use the small universe and the adhd treatment Master Lin taught us.
Don't be afraid to help others in any situation. The Master has given to us an insight only a few have the opportunity to use. If you are afraid of ridicule it's ok. Just practice in the privacy of your mind.
have a happy day
justcappy
