Avoid any irritating food that can cause gastrointestinal peristalsis to accelerate. Including cold, greasy, spicy and so on.
Hot tea can be drunk as long as it is not too strong.
Patients with ulcerative colitis often have diarrhea and spleen and stomach deficiency, so they should eat less cold food. Lotus seed's heart is bitter and cold. If the heart fire is strong, you can drink a little less in moderation, so as not to have hyperactivity of bowel sounds.