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Your body usually heals itself from bronchitis after a week or so. However, there are cases in which the lungs are unable to expel the infection. Make a doctor's appointment if you experience the following:  You have a pre-existing condition that could affect your body's ability to take care of the infection on its own. You cough so much you can't sleep at night. You cough up blood. You feel weak when you cough. You keep coughing, yet hardly any/no mucus comes up. You notice an increase in the amount or thickness of the phlegm you cough up. Your coughing lasts more than a week, and doesn't seem to be going away. You have a fever that lasts more than a couple of days. You feel light-headed or have trouble getting enough oxygen. You have shortness of breath. If you have a dry cough and your cough keeps you from sleeping at night, or causes extreme pain, your doctor may prescribe or recommend an over-the-counter cough suppressant. Coughing constantly over a long period of time can be hard on your body, and your doctor may decide that a cough suppressant would be beneficial to your health. If your cough is productive and phlegm is coming out when you cough, then it is important to cough. Do not take a cough suppressant in this case. Bronchitis is usually caused by a virus, but since it irritates the lungs, it makes the body more susceptible to getting a bacterial infection at the same time.  If your doctor determines you have a bacterial infection, you may be prescribed an antibiotic. The antibiotics will help heal the bacterial infection, but will not treat the underlying case of bronchitis. Smoking increases the chances of getting a bacterial infection in your lungs. Chronic bronchitis is a lung infection that persists over the course of several years, with symptoms that ebb and flow over time. It is usually caused by smoking or the continual inhalation of another lung irritant.  If you have chronic bronchitis, your doctor may prescribe an anticholinergic bronchodilator or steroids to help open up the lungs'...