If the child often has a runny nose, accompanied by symptoms such as stuffy nose, headache and listlessness, it is possible to suffer from paranasal sinusitis. Accessory sinus is an organ of human head. There are four pairs of paranasal sinuses located in the skull near the nasal cavity. Its cavity surface has a layer of mucosa, which is connected with the nasal mucosa. The paranasal sinuses all lead to the nasal cavity.

Congestion and swelling of nasal mucosa

After the child got acute upper respiratory tract infection, the nasal mucosa was congested and swollen, and the mucosa of paranasal sinuses also showed the same change, and the secretion increased.

Snuff purulent.

The mucosa at the opening of paranasal sinuses becomes smaller due to swelling, and secretions cannot flow out or drain poorly. The child's nose is obviously blocked, his head is swollen and painful, and his nose becomes pus.

Be prone to complications

The blood vessels between children's sinuses and nearby tissues are rich and closely related, so the suppurative infection of children's sinusitis is easy to cause complications of nearby tissues.