Dizziness, sweating and rapid heartbeat after eating betel nut may be signs of betel nut poisoning, treatment includes general treatment, medication such as diuretics. Betel nut is a class 1 carcinogen, long-term consumption of betel nut has a high risk of cancer, it is not recommended to consume betel nut. 1. General treatment: first stop consuming betel nut for observation, patients with mild symptoms can gradually relieve their symptoms in about 20 minutes. If the condition is serious, you can go to the hospital to detoxify the betel nut through gastric lavage, magnesium sulfate high level enema and other treatment methods. 2. Pharmacological treatment: Since there is no specific antidote for betel nut poisoning, it is often treated with broad-spectrum antidotes, such as reduced glutathione and vitamin C. Diuretics, such as furosemide, vitamin C, etc., can also be used to relieve the symptoms of betel nut poisoning. Diuretics such as furosemide and hydrochlorothiazide can accelerate the excretion of urine. Blood purification therapy is available for severe cases. The appropriate medication needs to be chosen under the guidance of a doctor. When patients experience discomfort, they should go to the hospital immediately.