Causes, incidence, and risk factors
Asthma is caused by inflammation in the airways. The muscles surrounding the airways restrict, limiting the amount of air that can pass through, causing a wheezing sound.
Asthma symptoms and attacks can be triggered in patients with sensitivities to certain allergens and allergy-causing substances.
Depending on severity, an Asthma attack can last minutes to days and will become dangerous if airflow is seriously restricted.
Patients who suffer from asthma can have a history (individually or genetically) of allergens, including hay fever or eczema. Other patients may have no history at all.
Some common Allergic Asthma triggers could include:
- Pollen
- Mold
- Weather
- Chemicals in food or the air
- Dust
- Pet hair or dander
- Cigarette smoke
- Respiratory infections
- Stress
- Exercise
Symptoms
- Coughing with a possible presence of sputum (otherwise known as phlegm)
- Intercostal retractions
- Shortness of breath which increases during physical activity
- Wheezing