Answer by
DrMom (854)
Voice loss (laryngitis), should be investigated by a physician if it lasts longer than two weeks. Irritation of vocal chords may be caused by smoking, throat clearing, allergies, yelling, excessive cold, or even cancer of the larynx. When you talk over your laryngitis you further irritate your vocal chords and exacerbate the condition. It's like scratching an already irritated wound.