This spell should be accompanied by hand movement, the hands, in your visualization, stroking the throat of the subject.

"Let the throat be pure,
let the voice be strong.
Let the Healing Light,
the Healing Warmth,
the Healing Ghost,
transform and bless the Voice,
the Voice, the Voice, the Voice.
So I will,
So must it be.
It is done,
and blessed be."

A Word of Caution: Healings must be performed only on people who fully desire to be well. Wherever possible, base the choice of spell on the sound diagnosis of a doctor, because sometimes curing the symptom and not the cause can have unfortunate results. Use instinctive body movement to intensify the power and intent of the spell.