In Tik Tok, there was indeed a doctor named Zhang Rulan who was recommended to treat stomach problems. Zhang Rulan, deputy chief physician, professor, national tutor of traditional Chinese medicine, former director of internal medicine of Xiyuan Hospital of Chinese Academy of Traditional Chinese Medicine, graduated from Beijing University of Chinese Medicine, and has been engaged in clinical work of traditional Chinese medicine and integrated traditional Chinese and western medicine for more than 40 years. He is good at treating digestive system diseases, various chronic gastritis, chronic superficial gastritis, chronic atrophic gastritis with intestinal metaplasia, ulcer, reflux esophagitis, gastrointestinal bleeding, stomach and wrist pain, pantothenic acid, hiccup and chronic ulcerative colitis.