I have a persistant excessive mucous in my throat and white coated tongue for nearly a year.reoccuring sore throat.what is the cause and how to treat?

LPR: Exposure of the vocal cords to stomach acid & pepsin will result in inflammation of the vocal cords (as is also often seen with acid regurgitation). Acute laryngitis may result, but watch out for chronic hoarseness, throat clearing, airway spasms, bronchitis, an asthma-type presentation, and even a higher risk of throat cancer. Impedance pH testing with a symptom diary can best characterize this.