I have had a fever for 3 days and then it went away and I was just coughing, but the phelgm just wont come out and it's huge and I feel it in the bck of my throat. It's making my voice hoarse and I frequently have coughing fits and it's making me cough so hard i want to gag but the phlegm wont come out but I KNOW THE SECOND IT COMES OUT VERYTHING WILL BE BETTER 

HOW DO I GET THIS OUT OF ME