ASTHMA – INTRODUCTION
Some children lose their asthma at adolescence but find it comes back when they enter their 40s.
In asthma, there is an oversensitivity of the bronchial tubes and, in allergic individuals, a generalised hypersensitivity to certain foreign proteins or allergens. These may be animal fur, grass pollens, the house dust mite, sometimes chemicals eaten or breathed or even food.
Many things can trigger off the asthma. They are believed to stimulate mast cells in the lining of the bronchial tubes and these cells release chemicals like histamine which cause the muscle constriction, the swelling of the lining and the excess production of mucus.
These are infection, allergy, emotion, exercise or combinations of them all.
Asthma usually starts in childhood and it is then an accurate diagnosis should be made.
If asthma is the diagnosis, then how severe it is and how often it comes are important, because these things will influence the treatment.
Children may wheeze with any chest infection but asthma is the commonest cause of recurrent wheezing.
*210/71/1*
Related Posts:
Categories: General health
