It is mainly caused by diarrhea and can be relieved with medication. Longan is a common dried fruit food, which is hot and not easy to digest after ingestion. Some people have a weak spleen and stomach or indigestion, so they should eat longan only sparingly, as eating too much of it will increase the burden on the gastrointestinal system and cause diarrhea. Eating longan can cause excessive peristalsis due to its stimulation of the mucous membrane of the gastrointestinal system. Longan is covered with bacteria, which, when ingested into the gastrointestinal system, can induce an attack of acute gastroenteritis and therefore lead to diarrhea. Medications can be used to relieve diarrhea symptoms when they occur, and common medications include morpholine and haloperidol. Attention should also be paid to hydration during diarrhea to avoid electrolyte disorders.