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Asthma is a very common condition that is quite often 'miss' diagnosed. Asthma presents as breathlessness, it is also called as wheezing, due to the typical sound that is often present. The lungs help us breathe in the air , there is a phase where the air goes in called inspiration and when the air comes out its called expiration. Asthma typically occurs when the air pipes or tubes through which the air goes in and comes out gets narrowed. When this happens , there is increased resistance to the air flow and this resistance causes the wheeze or sounds that are associated with the condition.
Some people are more prone to Asthma than others , those with a general tendency of allergies tend to be more at risk for developing asthma. Since the narrowing of the air pipes reduces the air flow, there also is a change in the gas exchange which happens in the lungs, when the gas exchange is suboptimal the body feels the need for more air and this is characterized as breathlessness. Sometimes a person might also have a cough along with the wheezing and this can be misdiagnosed as a respiratory infection when there is none, unless there is a clear-cut evidence of infection that too of bacterial origin Antibiotics won't be useful. ( because a large number of viral infections can also be there).
Many people when they have a cough and breathlessness walk into a drug store and buy an antibiotic or cough syrup and self-medicate. This can be very harmful, developing antibiotic resistance means the next time there is an infection the less likely the antibiotics are likely to work and secondly some medicines can themselves increase the risk of asthma or wheeze.
The treatment of Asthma is very simple, there are very good inhalers that help the tightness or narrowing of the air pipes to be relieved in a matter of seconds, so if you think you have asthma consult someone who can diagnose it correctly and help you live more productively.