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Asthma is one of the most common chronic diseases in childhood, and its pathogenesis is not yet clear. In recent years, the imbalance of intestinal flora has attracted more and more attention to the occurrence and development of childhood asthma. Traditional Chinese medicine believes that the lung and the large intestine are interrelated, and the occurrence of childhood asthma is closely related to the dysfunction of the lung and the large intestine, while Western medicine believes that the occurrence of childhood asthma is related to various factors. Among them, pulmonary immune imbalance caused by intestinal flora disorder is one of the important causes of its occurrence. This paper discussed the occurrence of childhood asthma by focusing on pulmonary and intestinal pathophysiology, so as to provide new targets or therapeutic ideas for the prevention and treatment of childhood asthma. [ABSTRACT FROM AUTHOR]

Allergic rhinitis (AR), as a recurrent allergic inflammatory disease, has an increasing inci- dence year by year in China, which seriously affects the work and life of patients. However, the pathogenesis of AR is still unclear, and the studies have found that intestinal flora and fecal metabolites can not only interact with each other, but both can participate in the occurrence and development of AR by affecting mucosal barrier function, regulating immunity, and so on, which may provide new possibilities for the treatment of AR. This paper reviewed the articles on the relationship between intestinal flora and related fecal metabolites and AR in recent years, in order to provide ideas for the treatment and pathogenesis of AR. [ABSTRACT FROM AUTHOR]