求翻译：　　有一天，他看到报纸上介绍，用核桃壳煮水，可以治疗口腔溃疡。他问我，胃溃疡可不可以用，我说，核桃壳具有一定的收敛作用，所以，你可以试试。于是，他每天抓一小把核桃壳，大约有50克，煮水，早晚各服一次。 3个月后，胃胀气、胃溃疡得到了控制。是什么意思？

　　One day, he saw the newspaper describes, with walnut shell boiled water, treatment of oral ulcers. He asked me, gastric ulcers can I say, walnut shell has a certain convergence of function, so you can try. So every day he caught a small walnut-shell, about 50 grams of boiled water, sooner or later all taken. After 3 months, flatulence, stomach ulcer of stomach was brought under control.