After you get in the water, whether you're swimming in the ocean or a pool or just taking a bath or a shower, you should be attentive to keeping your ears dry. Wipe the water off the outside of your ears with a clean cloth, and pat the area closer to your ear canal dry, too. Make sure to tilt your head to one side or another to shake out any of the excess water in your ears. It's true that some people are more prone to getting water stuck in their ears than others, since a lot of it depends on the shape of your ear. If you tend to get water stuck in your ears a lot, then you should be especially vigilant. While you may think that a cotton swab could help you excavate your ears, whether you want to remove water, wax, or a foreign object, using a q-tip actually has the opposite effect, and it can actually push the water or wax deeper into your ear. It can also scratch the inside of your ear, causing further pain.  Using a tissue to clean the inside of your ears can scratch them as well. You can use a few drops of mineral or baby oil to loosen ear wax if you need to. If you want to clean the outside of your ears, wipe them down gently with a damp cloth. Using earplugs or cotton balls when you sleep at night can have a similar effect to cotton swabs if your ears have water or other substances stuck in them, pushing the matter deeper into your ear. If you're having ear pain or feel that there's water stuck in your ear, then avoid these nighttime aids for the time being. You should also avoid headphones until the pain clears up, too.

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Write a summary of the previous text in Vietnamese:
Làm khô tai sau khi bơi. Hạn chế sử dụng tăm bông làm sạch tai. Tránh sử dụng nút tai hay bông gòn khi tai bạn đang bị nước đọng.