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 Asthma is a medical condition that causes a person's respiratory tract (airways) to become inflamed, narrow, or swollen, thus making breathing difficult. Asthma can also cause the person's airways to produce extra mucus which also makes breathing difficult. Asthma also makes the respiratory tract (trachea and bronchial tubes) to overreact to common things in the environment that one is exposed to on a daily basis. Asthma can be minor or it can interfere with daily activities. In some cases, it may lead to a life-threatening attack. Asthma may cause difficulty breathing, chest pain, cough and wheezing. The symptoms may sometimes flare up. Asthma can usually be managed with rescue inhalers to treat symptoms and controller inhalers that prevent symptoms. Severe cases may require longer-acting inhalers that keep the airways open, as well as oral steroids. It is quite common in Nigeria with an estimate of over 1.5 million cases a year, and it affects both children and adults. Ast...