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Bronchial asthma is a chronic disease of the air-ways, causing bronchial tube contractions and air flow reductions.

The most common symptoms of asthma include: attacks of dyspnea due to bronchospasm, cough and wheezing. They are particularly intensive at night and early in the morning. The symptoms of asthma can subside, completely or partially, if the patient receives appropriate anti-asthmatic treatment. Asthma attacks can occur after exposure to allergens (dust, pollens, animal hair, feathers, some food products), during physical exertion, breathing cold air, or respiratory tract infections.

Asthmatics often complain of feeling of compression in the chest, excessive sputum production, sleep disturbances, or increased respiratory rate.

It is very important to avoid contact with asthma incident-causing factors (avoiding allergens or exposition to cold air). The therapy includes mainly bronchia dilating agents combined with anti-inflammatory drugs (e.g., steroids). Physiotherapeutic procedures and respiratory exercises may also be considered.