Hi, fever is due an viral infection which is usually self limiting with symptomatic management. Rest. 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 (5 grams) of table salt. Consider lozenges. Lozenges can soothe a sore throat. Consult Physician if symptoms persists...