Girls, child's cough started paroxysmal, stuffy nose, no temperature. …

Girls, child's cough started paroxysmal, stuffy nose, no temperature. I rinse the nose, wipe the throat with furacilin, breathe through nebulizer. We haven't had this before when the cough is paroxysmal, it suffocates. What else can be done? Has anyone experienced this, how long did it take? Tomorrow we will go to the doctor