Viral laryngitis normally does not require medical treatment. Gargle with warm saltwater or use throat lozenges to relieve the sore throat. Breathing in moisturized air may help. You can use a humidifier or shut yourself in the bathroom for a few minutes after letting the shower run on its hottest temperature.
To rest your vocal cords, talk as little as possible. Avoid whispering, too, because it strains the voice as much as normal speech. If your doctor determines that a bacterial infection is causing the laryngitis, he or she normally will prescribe antibiotics.