I have been coughing for almost 8 weeks. I have visited a doctor 2 times and was given antibiotics and prednisone plus cough medicine that did not help. The prednisone was given due to a bad case of poison oak. I am still coughing as if I am trying to cough my insides out and am coughing up a clear looking (no color) mucus. I also have been sweating profusely and developed on & off diaherra. Should I be concerned? :