What causes ear pain?

I have been feeling a mild, dull ache in my left ear since yesterday, and I am a bit scared. Does a cold or sore throat usually cause this, or could it be something else? If anyone has faced this, please let me know.

Ear pain is very commonly caused by a sinus infection, a bad cold, or even a dental issue like an impacted wisdom tooth. Try using a warm compress on the cheek and ear area for some quick, temporary relief. But if you have fever or any fluid drainage, you definitely need a proper checkup.

Since my thyroid diagnosis, I have realized how closely our neck, throat, and ears are connected. Swollen glands or throat infections can easily radiate pain to the ears. Please get a regular medical checkup done and follow up with your doctor rather than ignoring these symptoms.

I completely understand how frustrating and painful earaches can be; it literally kept me awake crying all night because the throbbing just wouldn't stop. It makes you feel so helpless and irritable. Please don't suffer through it silently, just book an appointment with a doctor and get some relief.

My ENT explained that the Eustachian tube connects the back of the nose to the middle ear, and any congestion there creates a vacuum, causing sharp pain. He strictly advised me never to use hairpins or keys to scratch, as it can easily damage the sensitive eardrum.