Asthma (or asthma) is a lung disease caused by inflammation and narrowing of the bronchial mucosa, which prevents proper outlet air from the lungs. It is characterized by the presence of coughing, wheezing and chest tightness, secretions (phlegm), dyspnea (fatigue and shortness of breath), rhinitis, sneezing, itchy nose, etc. In addition, asthma is in the form of "attacks" or "asthma attacks" and affects the whole population in general, but usually begins in childhood, stage where the disease is highly present in response to certain stimuli that cause allergies (pollen, dust mites, skin particles of some pets, cold air, certain foods or food additives ...). These agents are also triggers, typical of some trades or professions (bakers, farmers, millers, manufacturers of detergents, woodworkers, plastic, laboratory, etc.) occupational asthma. The most effective treatment for this condition is to conduct some diagnostic tests (complete blood analysis, including antibody test certain substances, chest radiography, lung function tests, allergy tests ...) and establish a drug based therapy bronchodilators to open the airways.