Ear pain from sinus infection can be relieved by treating the underlying sinus infection. Here are some remedies that can help relieve sinus pressure and related ear congestion:

• Take a nasal decongestant for up to 3 days.
• Blow your nose gently.
• Use a nasal rinse or nasal irrigation system.
• Use a humidifier, as dry air can irritate your nasal passages.
• Drink plenty of water throughout the day to help keep mucus thin and promote drainage.
• Avoid irritants, such as tobacco and vape smoke.

In addition to these remedies, there are some other things you can do to help relieve ear pain from sinus infection:

• Use steam therapy, which involves breathing in steam from a bowl of hot water or in the shower to loosen excess fluid buildup.
• Place a warm compress washcloth on your ears or face.
• Use over-the-counter ear drops or an earwax removal kit.
• Use an ear syringe with lukewarm water or a saline solution.

Its important to note that if you experience persistent fever, along with sinus pressure in ears, earache, fluid drainage, hearing loss, or balance issues, you should consult a medical professional.