Vocal rest is the modified or total cessation of laryngeal activity.
In other words, talking less or not at all. Voice rest prevents further irritation to damaged or irritated vocal folds. This in turn helps the healing process. Modified vocal rest is usually the recommendation, although complete rest may be necessary in cases of severe laryngeal injury. The length of voice rest is the decision of the physician although complete voice rest is highly controversial in terms of its value and practicality.