Im on 30 mg of prednisone and a puffer ever four hours for the past two days but it has no effect or has not helped the cough is that bad?

It depends: How long have you had the cough? How disruptive is it? Are you coughing up yellow sputum? Do you smoke? You may need antibiotics. Another modality to try is to put one bottle of hydrogen peroxide into a humidifier, and two bottles (same size) of water. That gives a 1% aerosolized solution of peroxide. Kills virus and bacteria on contact, and breaks down into water and oxygen.