Answer:
1.Asthma causes inflammation of the air ways (bronchi) with particles in the air e.g pollen grains, leading to narrowing of respiratory passages and swelling.This is followed by obstruction of these passages with mucus.if this becomes intense it triggers coughing,sneezing, tightness of chest, and shortness of breadth.The latter effect to be specific leads to the collapse of the lungs.(Pnuemothorax)The latter leads to loss of O2 to the brain and other vital organs which is life threatening.
When the immune systems took substances like pollen grains (allergens)for an antigen, the immune response releases chemical (histamine), this is the chemical that leads some of the symptoms of allergy and asthma. These sequence of event is called allergy.
If these occurred in the lungs, it may produce series of asthma symptoms.(allergy asthma). In order for the doctors to confirm if it was allergy reactions that he had, that is if he was having allergy asthma or non-allergic asthma attack, he needed to ordered the allergy test.
Periods of high pollen counts should be avoided.
Dust mites should be avoided.
Rooms should be kept dry to avoid humidity.
Pet allergy should be well monitored.
Effective air filters should be used.
Hot caffeinated drink should be taken,to generate heat, and to reduce contrition of airways.All these measures are important to prevent allergic reactions.
Step-by-step explanation: