Hello Steroids are meant only for emergency cases not for ordinary cases like cough . Since this is common and main reason is allergy . Allergy produce bronchoconstriction and this develop cough . So when such patient visit I prescribe my patient to take montelukast+bambuterol ( 10 mg in each salt ) , one tablet / day and patient respond at once . If cough is severe then also use chlorampheniramine + AMBROXOL + menthol cough syrup. So don t use steroid , rather avoid it . This is a prescription drug ,so consult a physician and get his help. Hot coffee and steam inhalation is also very good.