A severe cough is never pleasant and needs to be addressed as soon as possible. A severe cough is dangerous because it is hard to breathe during it and can be the start of an asthma attack if not treated quickly. Severe coughs can be signs of other illnesses but as they usually are persistent, the cough should not be taken lightly or passed over a cold. A severe cough can damage the throat by the chronic motions and possible trigger acid reflux disease if left untreated.Next