The throat is hard to cough and a little short of breath, may be due to allergic asthma, infectious diseases and other reasons. 1. Allergic asthma: this disease is a respiratory disease, usually due to inhalation of pollen, dust mites, or consumption of fish and shrimp and other substances; when allergic asthma attacks, resulting in patients with airway narrowing, the lungs have an impact on the ventilation, which caused the throat, want to cough, and a little short of breath. 2. Infectious diseases: common in chronic obstructive pulmonary disease, bronchitis, severe pneumonia, bronchitis and other diseases, when these diseases attack, can lead to patients with difficult throat, cough, shortness of breath. The throat is hard to cough and a little short of breath, may also be caused by other reasons, it is recommended that the hospital visit, diagnosis and treatment.