Hi doctor, my stepmother has ate some poison...

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Doctors will work to determine the cause of liver damage such as toxins in your case. In most cases, stopping exposure to the toxic substances that cause hepatitis reduces your signs and symptoms.
Hepatitis treatments may include:
Conservative treatment: People with severe symptoms are likely to receive pharmacological treatment in hospital, including intravenous fluids and medications to relieve nausea and vomiting associated with the condition, and to monitor symptoms and progression or recovery.
Emergency care In the case of people who take an overdose of toxic drugs, emergency care is very necessary to mitigate and prevent the development of pathological complications and clinical follow-up with periodic monitoring of liver tests to remove the harmful drug from the body, or reduce its toxic effect.
Liver transplant When liver function is very poor, a liver transplant may become the only option for some people. A liver transplant is a procedure to remove the diseased liver and replace it with a healthy liver from a donor.