Right Facial Nerve Damage: Symptoms, Causes & What to Expect

Right facial nerve (CN VII) palsy causes ipsilateral (right-sided) deficits. Common etiologies: Bell’s palsy (idiopathic), Ramsay Hunt (VZV), stroke, tumor, trauma, Lyme disease.

Clinical Manifestations

• Facial droop/asymmetry at rest and with expression.
• Inability to close right eye (lagophthalmos) → corneal exposure risk.
• Forehead involvement: Peripheral lesion (Bell’s) spares forehead? No—peripheral lesion affects entire hemiface including forehead. Central (stroke) spares forehead (bilateral innervation).
• Drooling from oral incompetence.
• Taste loss: Anterior 2/3 of tongue (chorda tympani).
• Hyperacusis: Stapedius muscle paralysis.
• Dry eye/altered tearing.

Urgent Evaluation Needed

Distinguish peripheral (Bell’s) vs. central (stroke) — stroke is time-sensitive. Sudden onset + other neuro deficits (arm weakness, speech) → call 911.

Management

• Eye protection: lubricants, taping at night.
• Bell’s palsy: Prednisone 60 mg/day × 7 days + valacyclovir (if Ramsay Hunt suspected) within 72 hrs.
• Physical therapy, EMG-guided biofeedback.
• Most Bell’s palsy recovers fully in 3–6 months.