Crying lungs!! dont insult them more...

Oxygen is our body's fuel without which we can not survive.

Soul may be defined as " the ability to use oxygen" and when our cells loose this ability (soul leaves body) for whatever reason, we die.
Lungs, one of the vital organs of the body,  have the responsiblity to receive oxygen from the atmosphere which after binding to hemoglobin is delivered to every part of the body by the circulating blood.

Fresh air is the nourishment for lungs. On the contrary, man is the only living subject that will fully smokes cigarette and causes enormous insult to the lungs inviting diseases like COPD and lung cancer.

Don't start smoking if you don't and don't delay quitting if you do.

Inhalers are not addictive

It is a common misconception that inhalers given for the treatment of Respiratory (Chest) diseases cause addiction and thus should be avoided.
In fact, they have been designed to avoid side effects which might result if same medications are given orally or through veins and thus have revolutionized treatment of these diseases.
If some one requires these inhalers for longer period of times, it is because of the nature and requirement of the medical condition and not because of addiction to inhalers. 

Can I know what I am allergic to ?

Yes..
The answer invloves,

Detailed and directed history obtained from patient.
Skin allergy test and
Blood allergy test.

Treatment entails avoidance of the allergen,
General treatment which reduces the symptoms of allergy
Specific treatment that reduces body's hypersensitivity to allergens.

Chronic cough

Chronic cough is not only a bothersome symptom but a social stigma as well. If one is otherwise healthy and non smoker, it is most commonly secondary to one of the three following conditions namely,

1. Asthma (Cough variant Asthma)
2. GERD
3. Upper airway cough syndrome.

Diagnosis may be clinched with proper history taking and doing few tests usually performed under supervision of a Pulmonologist (Chest Physician). After making the diagnosis effective treatment may be offered.