The Royans Institute for Non-Surgical Voice Repair - A hoarse & raspy voice can be caused by anything that interferes with the normal vibration of the vocal cords. We at Royans Institute,
3 Ways to Make Your Voice Hoarse - wikiHow
Can Allergies Make You Hoarse? Common Causes and Solutions
How To Treat A Hoarse Voice - A Singer's Guide
How Treat a Hoarse Voice | Treatment for a Raspy Voice - Repair Your Voice
How cold, flu, and allergy symptoms can hurt your voice | ENT | Prevention | UT Southwestern Medical Center
Hoarse voice before a presentation? 7 powerful treatment secrets from singer, moderator & speaker Danja Bauer