Asthma

Such triggers include: cigarette smoke, cold weather, dust, pollen, aerosol, exercise, anxiety and allergies.

Symptoms of Asthma:
Coughing is a common early symptom, usually productive cough producing copious mucus.
Wheezing: A well recognized feature, it is the whistling, musical sound that occurs when the patient breathes against narrow airways in the lung.
Breathlessness: A patient grows gradually more out of breath; breathing gradually becomes more difficult, heavy and painful.
These are the typical complaints in an asthma attack. If they are not treated in a timely manner they could progress to;
Cyanosis: the face turns bluish because the blood is not oxygenated properly (dangerous sign)
Agitation: the patient becomes frantic as the need of air (air hunger) increases.
Apnea: The respiratory drive eventually fails, and the breaths become less frequent and might stop altogether.
Loss of consciousness: the patient passes out from too little oxygen delivered to the brain. Finally:
Heart arrest and death.