上海读者刘先生:我每天早上刷牙的时候总会干呕,所以最里面的牙都不敢刷。这是怎么回事,该怎么解决?连线医生——上海市口腔病防治院办公室主任、口腔内科主任医师陈栋根据您的描述,我认为有以下几种可能:第一,要去医院的耳鼻喉科,排除是否为慢性咽炎。抽烟、空气污染、身体抵抗力下降、过度疲劳、感冒、慢性系统性疾病等,都可能诱发咽炎。若久治不愈,就可能转为慢性咽炎,其典型症状就是早起干呕、嗓子发痒。第二,如果在刷牙干呕的基础上,还伴有咽喉红肿、泛酸、嗳气或胸骨后烧灼感等,可能是胃液反流刺激咽部和食道而诱发症状。需要尽早到消化内科就诊。第三,如果排除了上述两种疾病,就要考虑自己的刷牙方法、工具是否有 Shanghai Reader Mr. Liu: Every morning when I brush my teeth always retching, so the most inner teeth are afraid to brush. According to your description, I think the following possibilities: First, go to the hospital’s ENT, rule out whether it is chronic pharyngitis. Smoking, air pollution, decreased physical resistance, fatigue, cold, chronic systemic diseases, may lead to pharyngitis. If prolonged treatment, it may turn into chronic pharyngitis, the typical symptoms are early retching, throat itchy. Second, if you brush your teeth on the basis of retching, but also accompanied by throat swelling, pantothenic acid, belching or sternal burning sensation may be gastric reflux to stimulate the pharynx and esophagus and induced symptoms. Need to digest medical treatment as soon as possible. Third, if you exclude the above two diseases, it is necessary to consider their brushing method, whether the tool