Asthma (from the Greek word ἅσθμα, ásthma, "panting") is a common chronic inflammatory disease of the respiratory tract that is characterized by variable and recurrent symptoms, reversible respiratory obstruction and bronchospasm. Common symptoms include wheezing, cough. , Chest tightness and respiratory problems.

 


Asthma is considered a combination of genetic and environmental factors. Diagnosis is usually based on the pattern of symptoms, response to treatment over time, and spirometry, it is clinically classified by frequency of symptoms, forced expiratory volume (FEV1) in one second, and peak expiratory flow rate. . Asthma is also classified as atopic (external) or non-atopic (inner) where atopy has been referred to as pre-adapted to the development of type 1 hypersensitivity reactions.

 

Severe symptoms are usually treated with an inhaled short-acting beta-2 agonist (such as salbutamol) and oral corticosteroids. Intravenous corticosteroids, magnesium sulfate, and hospitalization may be necessary in each severe case. Symptoms can be prevented by protecting against allergens and irritants such as catalysts and by the use of corticosteroids. Corticosteroids inhaled to long-term active obstructive beta (LABA) or leukotriene antagonists may be used if asthma symptoms remain uncontrolled. Symptoms of asthma have increased significantly since the 1970s. As of 2011, 235–300 million people worldwide were affected, including approximately 2,50,000 deaths.


IT'S SYMPTOMS


Asthma is characterized by frequent wheezing, shortness of breath, chest tightness, and cough. Cough may arise from the lungs due to cough but it is very difficult to bring it out. When recovering from a seizure, it may look like pus due to high levels of white blood cells called snowflakes. Symptoms usually worsen at night and early in the morning or due to exercise and cold air response. Some people with asthma usually experience symptoms rarely in response to stimulants, while others show and persist.