Congested nose

Many people think that a nose gets congested (stuffy) from too much thick mucus. However, in most cases, the nose becomes congested when the tissues lining it become swollen. The swelling is due to inflamed blood vessels. Newborn infants must breathe through the nose. Nasal congestion in an infant's first few months of life can interfere with nursing, and in rare cases can cause serious breathing problems. Nasal congestion in older children and adolescents is usually just an annoyance, but it can cause other difficulties. A stuffy nose is usually caused by a virus or bacteria.