Reassure him that people ingest small amounts of gasoline all the time, and are usually just fine.  Encourage the victim to take deep, calming breaths and relax. Small amounts of gasoline causes little harm once it reaches the stomach, but inhaling even a few drops of gasoline into the lungs can cause serious respiratory problems. Vomiting greatly increases the chances that a person will aspirate (inhale) gasoline into his lungs, and must be avoided. If the victim vomits spontaneously, help him to lean forward to prevent aspiration.  Have him rinse his mouth with water after vomiting and immediately contact Poison Control and Emergency Services. Encourage him to drink slowly to avoid coughing or choking.  If the victim is not conscious or able to drink on his own, do not try to administer fluids and call Emergency Services immediately.  Do not give the victim milk unless directed to do so by the Poison Control center, as milk can cause the body to absorb the gasoline more quickly.  Carbonated beverages should also be avoided, as they may make the burping worse. Avoid drinking alcohol for at least 24 hours. In the United States, the number is 1-800-222-1222.  If the victim is experiencing acute distress, including coughing, difficulty breathing, drowsiness, nausea, vomiting, or anything more severe, call Emergency Services right away. The victim should remove any clothing that came in contact with the gasoline. Set the clothing aside and rinse any affected skin with plain water for 2-3 minutes, then wash with mild soap.  Rinse the skin again thoroughly and dry. Gasoline and gasoline vapors are extremely flammable, and smoking could lead to a fire.  Cigarette smoke can also exacerbate any damage done to the victim's lungs by the gasoline. This could continue for as little as 24 hours to as long as several days.  Drinking extra fluids may help provide relief to the victim and help the gasoline pass through his system faster. If the victim starts to feel worse at any point, take him to the doctor for further...

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Write a summary of the previous text in Vietnamese:
Ở bên cạnh nạn nhân và giúp họ bình tĩnh. Không Cho nạn nhân uống nước hoặc nước quả ép sau khi súc miệng với nước. Liên lạc với trung tâm chống độc và kể lại tình huống. Giúp nạn nhân rửa sạch xăng trên da. Đảm bảo nạn nhân không hút thuốc ít nhất trong 72 tiếng, và đừng hút thuốc gần nạn nhân. Trấn an nạn nhân rằng việc ợ lên hơi xăng là bình thường. Giặt quần áo dính xăng.