Hello...You seem to be suffering from it from one year and it's a quite long time...I would suggest you to meet a physician or a pulmonologist get an x-ray or hrct if required and them decide what to do...Please meet a doctor

Hi..... Get plenty of sleep and rest your voice. Drink fluids. Drink plenty of water to keep the throat moist and prevent dehydration. Try comforting foods and beverage. Warm liquids — broth, caffeine-free tea or warm water with honey — and cold treats such as ice pops can soothe a sore throat. Gargle saltwater. A saltwater gargle of 1 teaspoon. Gargle the solution and then spit it out....