This remedy has a natural antiviral effect in acute and latent viral infections, i.e. laryngitis, bronchitis, sinusitis, pharyngitis, and flu-like symptoms. Quent is very beneficial when used with Muc, Nig, and Not for migraine, MS, vertigo, Meniers' disease, herpes zoster, chicken pox, cephalgias, chronic inflammation of the urinary tract, nephritis, and chronic fatigue syndrome.