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Mild redness may appear in the inner ear canal. However, as the infection progresses, the redness may become more apparent, spread beyond the inside, and be visible on the outer skin of the ear as well.
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In mild situations, this symptom may not be present, but in more severe cases, your hearing may be compromised. You may notice a decrease in the ability to hear or a persistent ringing in the back of your ear.
6. Discharge of odorless liquid

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As with other symptoms, the small amount of odorless fluid may gradually increase as the infection progresses. It may go from a small amount to becoming excessive over time.
How to Prevent Ear Infections
1. Avoid using cotton swabs or foreign objects.

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Cotton swabs may seem useful for cleaning ears, but they can actually push earwax deeper, causing irritation. If you experience any discomfort, you should stop using them. Additionally, it is essential to avoid using foreign objects such as keys, bobby pins, or paper clips to scratch or clean ears, as they can push earwax deeper, causing irritation or injury to the skin.