 Avoiding trigger or allergy food group can be beneficial by reducing fermentation in the digestive tract and gas production, hence effectively alleviate abdominal pain and bloating.Drug interventions, such as laxatives, loperamide, and lubiprostone are applied to relieve intense symptoms including diarrhea, abdominal pain and constipation.Psychological treatment, dietary supplements and gut-focused hypnotherapy are recommended for targeting depression, mood disorders and sleep disturbance.