口腔溃疡多见于婴幼儿，可单独发病，也可继发于全身性疾病，如发热性疾病、腹泻、营养不良或维生素缺乏等，多由病毒和细菌感染所致。婴幼儿口腔粘膜柔嫩，血管丰富，涎腺分泌量少，口腔粘膜干燥等生理因素皆有利于微生物的繁殖。因此，我们试用消化道粘膜保护剂思密达治疗口 Oral ulcers are more common in infants and young children, can be a separate disease, but also secondary to systemic diseases, such as febrile illness, diarrhea, malnutrition or vitamin deficiency, mostly caused by viruses and bacterial infections. Infants oral mucosa tender, rich in blood vessels, less salivary gland secretion, oral mucosal dry and other physiological factors are conducive to the reproduction of microorganisms. Therefore, we try to digest mucosal protective agent Smecta treatment mouth