What reason is cough after child abate fever?

summary

Recently, with the changeable weather and frequent colds in the school season, many parents take care of their baby day and night, exhausted, and the baby finally has a fever, but how can they start to cough again? In fact, this is cough after a cold, also known as "cough after infection". Today, I'd like to talk about the cause of cough after fever abatement?

What reason is cough after child abate fever?

Cough after a cold is usually caused by upper respiratory tract infection. It is a very common disease in pediatrics clinic. According to the multicenter study on the etiological constituent ratio of chronic cough in Chinese children, 21.72% of children had simple respiratory tract infection and cough after infection, and 26.1% had mixed respiratory tract infection and cough after infection, ranking the third in the etiological constituent ratio of chronic cough in Chinese children. This proves that this kind of cough is very common, especially in the cold season, if you are not careful, you may be caught. In fact, this diagnosis is also the general name of a large group of primary causes. Respiratory tract infection includes the infection of various parts of the upper and lower respiratory tract. It is not just cough after a cold, but because upper respiratory infection is more common and easy for parents to understand, we are collectively referred to as "cough after a cold".

Viruses and bacteria invade the respiratory tract, causing infection, causing airway inflammation, and producing a large number of inflammatory factors. These are soldiers fighting against pathogens, so that pathogens can be eliminated. However, excessive inflammatory reaction and airway injury after infection will temporarily increase the airway responsiveness, which is often called "airway hyperresponsiveness" by doctors. A little stimulation may induce airway contraction and cough. Common infections include: influenza virus, rhinovirus, pararhinovirus, pertussis, pertussis like, Mycoplasma pneumoniae infection, Chlamydia pneumoniae infection, and even pulmonary tuberculosis. Young infants should also pay attention to the possibility of Chlamydia trachomatis, cytomegalovirus and Ureaplasma urealyticum infection.

The most common age of cough after cold is infants and preschool children. They have a clear history of respiratory tract infection recently. They usually cough for more than 4 weeks, with irritative dry cough or a little white mucus. When they are infected again, they can be caused by mucus or mucus sputum. Chest X-ray examination shows no abnormality or only increased lung markings, The pulmonary ventilation function was normal or showed transient airway hyperresponsiveness. Cough is usually self limiting. If the cough lasts more than 8 weeks, other diagnosis should be considered, and chronic cough caused by other reasons should be excluded.

matters needing attention

Mainly symptomatic treatment, the course of disease is self limited, if the cough is not serious, generally 6-8 days can be self-healing. The patients with severe symptoms may be treated with antiallergic, oral leukotriene receptor antagonists (such as shunerning) or inhaled corticosteroids.