If you’re bitten by any snake—even if you’re pretty sure it’s not venomous—go to the emergency room or call emergency services immediately. Even non-venomous snake bites can be dangerous if left untreated. While you’re waiting for help, wash the bite with soap and water if you can, and keep the bite below the level of your heart. Remove any tight clothing, watches, or jewelry that might constrict the area and cause swelling. After being bitten by a snake, make note of any symptoms that develop. Let emergency medical personnel or your doctor know about these symptoms, as they can help your care team figure out what type of venom they may be dealing with and how to treat it. Common symptoms of a venomous snake bite include:  Severe pain, redness, swelling, or bruising around the bite Numbness around the face or mouth Difficulty breathing A rapid heartbeat Weakness Dizziness, lightheadedness, or fainting A headache Nausea or vomiting Blurred vision Fever Convulsions If you’ve been bitten by a non-venomous snake, your symptoms will likely be fairly mild. However, it’s still important to have the bite checked out by a doctor immediately. Untreated snake bites of any kind can lead to a serious infection, and some people may experience allergic reactions to the snake’s saliva. Common symptoms of a non-venomous bite include:  Pain in the area of the bite Mild redness and swelling Bleeding from the bite wound Some itching in the bite area

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Write a summary of the previous text in Vietnamese:
Đi cấp cứu ngay nếu bạn bị rắn cắn. Theo dõi các triệu chứng nghiêm trọng để xác định vết cắn của rắn độc. Để ý vết cắn đau nhẹ, ngứa và sưng của rắn không độc.