
It is an episodic chronic respiratory disorder in which there is airflow obstruction causing difficulty in breathing. It is a very common disorder affecting children more than adults For some, the condition is mild with infrequent episodes & for others it is a serious medical emergency- An episode may pass away quickly and may be short lasting or at times lasts longer & requires immediate medical help.

Causes
Hereditary & familial tendency or history of allergy, which may be skin allergy also predisposes to asthma in the offsprings.
Allergy mostly inhaled is the most common cause of asthma.
Allergens can be:
- Allergy
- Repeated infection
Symptoms
- Environment - smoke, dust & pollution and petrol fumes
- Pollen and molds from grass, flowers and trees
- Strong perfume
- Paints & varnishe
- Tobacco smok
- Animal dander
- House dust mite
- Chemical fumes
Food, which can cause allergy are:
- Sour food
- Citrus fruits
- Cold food & drinks
- Artificially colored & flavored foods
- Fish
- Beer, wine
- Vinegar
- Grapes
- Canned vegetables