you can either drink hot tea with no sugar or milk or if you dont have these run to the store and pick up hales sore throat drops they work well and if you cant do those go get day quill and night quill those also really help
Try drinking some warm tea not too hot though...You might also try not expose yourself to cool air specially after being in a humid area or coming from warmer temperature...try getting a sore throat medicine at walmart or target.