Hi I Have Been Coughing For Three Weeeks Now. Its

hi i have been coughing for three weeeks now. its started as a fever and pain in the throat . i took amoxil 500mgs for a week didnt change. i went to see a doctor who prescribed 850mgs amoxil which i have finished the dose . i have a running nose, cough occasionally bt when i cough its continually and is wet till i feel like im choking in throat