When you are sick, your body makes more mucus to help fight off the germs that are making you sick. This mucus can sometimes collect in your ears, which can make them feel clogged. This can happen because the tubes that connect your ears to your throat, called the Eustachian tubes, can become swollen or blocked when you are sick. This can make it harder for the air to move in and out of your ears, which can cause them to feel clogged or full.
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