severe throat congestion and causes
There are several most common causes for throat congestion and among them are smoking, second hand smoke, air irritants, some chemicals, pollen, dust, viral infection or throat infection (such as measles or chicken pox), hard or big objects swallowing (usually occurs among children), respiratory or lung problems, heart conditions, strep throat, flue ...
There are several factors that might contribute to throat congestion, including seasonal allergies, chronic bronchitis, and upper respiratory infections. Asthma, an illness known to constrict the upper airways, can also cause symptoms of congestion.