Bell’s Palsy is a sudden, temporary weakness or paralysis of the muscles on one side of the face.
It can be alarming, especially because it often appears overnight, but in most cases, people recover fully within weeks to months.
Understanding what causes it and knowing the signs can help you seek prompt treatment and improve your chances of recovery.
Causes of Bell’s Palsy
Bell’s Palsy occurs when the facial nerve (which controls facial movement) becomes inflamed or compressed. The exact cause is not always known, but it’s often linked to viral infections such as the herpes simplex virus (which causes cold sores). Other potential triggers include respiratory infections, ear infections, Lyme disease, and stress-related immune responses.
Common symptoms to look out for
1. Sudden weakness or paralysis on one side of the face
This is the most noticeable symptom. It may make it difficult to smile, blink, or close one eye.
2. Drooping of the mouth or eyelid
One side of the face may visibly droop, resembling signs of a stroke — which is why immediate medical attention is crucial for diagnosis.
3. Drooling
This can happen due to loss of control over the muscles around the mouth.
4. Loss of taste on the front two-thirds of the tongue
Taste changes are common, especially on the affected side.
5. Pain or discomfort behind the ear or in the jaw
Mild pain may precede or accompany the facial weakness.
6. Increased sensitivity to sound in one ear
This is due to the nerve’s involvement in the tiny muscles inside the ear.
7. Dry eye or excessive tearing
Blinking may be difficult, which can lead to a dry or irritated eye on the affected side.
Bell’s Palsy is not life-threatening, but because its symptoms can mimic a stroke, you should seek medical attention immediately if facial drooping or sudden weakness occurs. Early treatment, often with corticosteroids, can help speed up recovery.
