1）、对比分析实验组与健康对照组患儿身高、体重、血红蛋白、血清铁等营养

1) Comparative analysis of the differences in nutritional indicators such as height, weight, hemoglobin, and serum iron between the experimental group and the healthy control group; <br><br>2): Clinical symptoms improvement: record abdominal pain before treatment and 4 weeks after treatment in the experimental group Changes in symptoms and signs such as, nausea, vomiting, and abdominal tenderness: Use the Gastrointestinal Symptom Scale [10] to score the clinical manifestations of abdominal pain, nausea, vomiting, and tenderness according to the severity of the symptoms, and record them as 0, 2, 4, and 6 points , The higher the score, the more severe the symptoms; <br><br>3) Comparative analysis of the changes in nutritional indicators such as hemoglobin and serum ferritin before treatment and one year after treatment; <br><br>4) Pathological analysis of gastroscopy: Gastroscopy was performed before treatment and 4 weeks after treatment. In the examination, 1 to 2 specimens were collected from the inflammation site, and 1 specimen was taken from the large and small curvatures of the gastric antrum. The specimens were fixed in 2% formaldehyde, and the degree of inflammation of the specimens was evaluated by HE staining. , Mild, moderate, and severe [11]. A rapid urinary enzyme test was performed on the specimens using the Hp kit, and a positive result was Hp infection. Comparative analysis of gastric inflammation improvement and Hp positive rate before and after treatment.

1) Comparing and analyzing the differences in nutritional indicators such as height, weight, hemoglobin and serum iron between the experimental group and the healthy control group;<br><br>2): Improvement of clinical symptoms: record the symptoms of abdominal pain, nausea, vomiting and abdominal pain changes before and after 4 weeks of treatment in the experimental group: the higher the score, the more severe the symptoms are, the more severe the symptoms are, according to the severity of the symptoms, the clinical manifestations of abdominal pain, nausea, vomiting, and pain are scored as 0, 2, 4, 6 points;<br><br>3) Comparative analysis of changes in nutritional indicators such as hemoglobin, serum ferritin, etc. in children before and 1 year after treatment;<br><br>4) Gastroscopic pathology analysis: before treatment and 4 weeks after treatment gastroscopy, in the presence of inflammation site to collect 1 to 2 specimens, at the same time in the stomach sinus size bend each take 1 specimen, the specimen fixed in 2% formaldehyde, using HE dyeing to assess the degree of inflammation of the specimen, divided into no, mild, moderate, heavy. The specimen was tested for rapid urinase using the HP kit, and the positive was HP infection. The improvement of gastric inflammation and hp-positive rate before and after treatment were compared and analyzed.

1) The differences of height, weight, hemoglobin, serum iron and other nutritional indicators between the experimental group and the healthy control group were compared and analyzed;<br>2) Objective: To investigate the clinical symptoms of the experimental group. Methods: the clinical symptoms of the experimental group were recorded before treatment and 4 weeks after treatment. The clinical manifestations of abdominal pain, nausea, vomiting and abdominal tenderness were scored with gastrointestinal symptom scale (GSS) [10] according to the severity of symptoms, and the scores were 0, 2, 4 and 6. The higher the score, the more serious the symptoms;<br>3) The changes of hemoglobin, serum ferritin and other nutritional indicators before and 1 year after treatment were compared and analyzed;<br>4) Pathological analysis of gastroscopy: gastroscopy was performed before treatment and 4 weeks after the end of treatment. 1-2 specimens were collected from the sites with inflammation. At the same time, 1 specimen was taken from the large and small curvature of gastric antrum. The specimens were fixed in 2% formaldehyde, and the degree of inflammation was evaluated by HE staining, which was divided into no, mild, moderate and severe [11]. HP kit was used for rapid urine enzyme test, and the positive result was HP infection. The improvement of gastric inflammation and HP positive rate before and after treatment were compared and analyzed.<br>