G51.0

Clinical Causes: Viral infections such as herpes simplex virus (HSV), which causes cold sores Other viral or bacterial infections, like herpes zoster and Lyme disease Inflammation or swelling of the facial nerve within the skull Immune system responses that attack the facial nerve Less commonly, conditions like diabetes or recent respiratory infections

Key Symptoms: Sudden weakness or paralysis on one side of the face Facial drooping, making smiling or closing the eye difficult Drooping of the mouth or eyelid Drooling due to difficulty controlling facial muscles Increased sensitivity to sound in the affected ear Tearing or dryness of the eye on the affected side Altered taste sensation on the front part of the tongue Muscle stiffness or twitching in the face

Diagnosis Path: The diagnosis of Bell's palsy is primarily clinical, based on a detailed medical history and physical examination. Healthcare providers look for sudden facial weakness or paralysis that affects one side. Additional tests might include blood tests to rule out infections, imaging studies like MRI or CT scans to exclude other causes of facial paralysis, and nerve conduction studies if needed. Early diagnosis is important to initiate suitable management and to rule out other neurological conditions such as stroke.

Treatment Protocols: Corticosteroids such as prednisone to minimize nerve swelling Antiviral medications if a viral cause, like herpes simplex, is suspected Eye protection measures, including artificial tears and eye patches, to prevent injury from inability to close the eye Facial exercises and physical therapy may help improve muscle strength Pain relievers for discomfort, if needed Monitoring progress over time, with follow-up to assess recovery