Jing Si Herbal Tea for Long-Coronavirus Disease(COVID) Gut-brain Interaction

Inclusion Criteria

• •1. Age between 20-70 years old.
• •2. Those who meet the definition of functional dyspepsia (FD). (Functional dyspepsia (FD) is chronic (once a week, lasting at least three months, at least six months before the first symptom) upper gastrointestinal symptoms (any of the following): postprandial abdominal distension, easy to feel full, Epigastric pain or burning sensation in the upper abdomen, and no symptoms of gastrointestinal bleeding or significant weight loss, no abnormality after upper gastrointestinal endoscopy).
• •3. Those who meet the definition of irritable bowel syndrome (IBS). (Irritable bowel syndrome (IBS) is chronic (once a week, lasting for at least three months) lower gastrointestinal symptoms: abdominal pain combined with diarrhea or constipation, and no symptoms of gastrointestinal bleeding or significant weight loss, no abnormalities after colonoscopy) .
• •4. Be conscious and willing to sign the subject's consent form.