Bell's Palsy Treatment in Kathmandu — Facial Weakness Evaluation & Care

How Bell's palsy presents

Bell's palsy is acute unilateral peripheral facial nerve paralysis. Onset is hours to 1-2 days. The affected side shows:

• Inability to close eye fully (lagophthalmos) — eye stays open even when trying to close
• Cannot raise eyebrow or wrinkle forehead on affected side
• Drooping mouth corner, cannot smile or show teeth symmetrically
• Drooling from affected side
• Loss of taste on front 2/3 of tongue (chorda tympani branch)
• Ear pain or discomfort behind ear (may precede weakness by 1-2 days)
• Increased tearing or paradoxical dry eye
• Hyperacusis (sounds seem louder) due to stapedius muscle paralysis

Critical distinction from stroke: Bell's palsy involves the ENTIRE half of face including forehead. Stroke (central facial weakness) typically SPARES the forehead — patient can raise eyebrow on affected side because forehead muscles have bilateral brain control. However, do not assume Bell's palsy without examination — sudden facial droop always warrants urgent evaluation.

Causes and risk factors

Exact cause unknown; viral reactivation (herpes simplex virus, HSV-1) within the narrow facial nerve canal (stylomastoid foramen) is suspected. Inflammation and swelling compress the nerve, causing temporary paralysis.

Risk factors:

• Diabetes (2-4x risk)
• Pregnancy (especially third trimester and first postpartum week)
• Recent upper respiratory infection
• Cold exposure (unproven but historically reported)
• Family history (rare familial cases exist)

Cultural misconceptions: Bell's palsy is NOT caused by sleeping near a fan, exposure to wind, cold water on face, or "air entering the nerve." These are widespread myths in Nepal and do not reflect medical evidence.

How Bell's palsy is diagnosed

Diagnosis is clinical — no scan or lab confirms Bell's palsy. It is a diagnosis of exclusion after ruling out:

• Stroke — check limb strength, speech, gait; forehead sparing suggests central cause
• Ramsay Hunt syndrome (herpes zoster oticus) — vesicles in ear canal or on face, more severe pain
• Lyme disease — bilateral weakness, tick exposure, erythema migrans rash (rare in Nepal)
• Otitis media or cholesteatoma — ear discharge, chronic ear disease
• Parotid tumor or surgery — mass, prior surgery
• Guillain-Barré syndrome — bilateral facial weakness, limb weakness, areflexia

Examination by Dr. Dr. Jitendra Prasad Yadav: Assess facial muscle strength (forehead, eyelid closure, smile, cheek puff), check for vesicles in ear, test limb strength and speech, review vascular risk factors, and assess eye closure adequacy (corneal protection). Labs and imaging (MRI brain, temporal bone CT) are ordered only when atypical features exist: bilateral weakness, recurrent episodes, slow progression over weeks, neurological deficits, or mass suspicion.

Treatment of Bell's palsy

1. Eye care (MOST CRITICAL):

• Artificial tears every 1-2 hours during day (prevents corneal drying and abrasion)
• Lubricating ointment at night
• Eye patch or gentle taping of eyelid closed during sleep
• Sunglasses outdoors (protect from wind, dust, UV)
• Avoid rubbing eye
• Urgent ophthalmology referral if eye redness, pain, or vision change develops (corneal ulcer risk)

Eye care prevents exposure keratopathy (corneal abrasion, ulcer, scarring) which is the most serious complication of Bell's palsy.

2. Corticosteroids:

Prednisolone 60-80mg daily for 5-7 days started within 72 hours of onset improves recovery odds from 70-80% to 85-90%. Contraindications: uncontrolled diabetes, active infection, pregnancy concerns (relative), peptic ulcer. Taper over 10-14 days if prolonged course used. Evidence supports steroids; antiviral alone does NOT improve outcomes.

3. Antiviral (controversial, selective use):

Acyclovir or valacyclovir added in severe cases (complete paralysis), early presentation (within 24-48 hours), or if Ramsay Hunt syndrome is suspected. Evidence for antiviral alone is weak; benefit is modest when added to steroids. Not routinely prescribed for mild-moderate cases.

4. Physical therapy and facial exercises:

Gentle facial massage and exercises (smile, raise eyebrows, puff cheeks) may be introduced after acute phase (1-2 weeks) to prevent muscle atrophy and synkinesis. Electrical stimulation is NOT recommended (may worsen synkinesis). Formal physical therapy referral if no improvement by 3 months.

Prognosis and recovery timeline

Expected outcomes:

• 70-80% recover completely within 3-6 months without treatment
• Steroids improve this to 85-90%
• 10-15% have permanent mild weakness or synkinesis (involuntary simultaneous movement, e.g., eye closes when smiling)
• Recurrence is rare (5-10% lifetime); recurrent cases warrant MRI to exclude structural causes

Recovery pattern: First improvement typically seen at 2-3 weeks; most recovery occurs by 3 months; final outcome clear by 6-12 months. Early predictors: age (younger better), severity (partial weakness better than complete paralysis), and time to treatment.

Complications and long-term sequelae

• Corneal abrasion/ulcer — preventable with eye care
• Synkinesis — aberrant nerve regeneration causing involuntary movements (10-15%)
• Crocodile tear syndrome — tearing while eating (rare)
• Residual weakness — mild asymmetry at rest or with smile (10-15%)
• Contracture — tight facial muscles on affected side (late, rare)

When Bell's palsy is NOT the diagnosis

Seek emergency evaluation if facial weakness occurs with:

• Arm or leg weakness, numbness on one side
• Slurred speech, difficulty understanding speech
• Double vision, visual field loss
• Severe headache, altered consciousness
• Inability to walk, severe imbalance
• Chest pain, palpitations

These features suggest stroke or other central nervous system cause requiring emergency imaging and intervention.

Bell's palsy care at Kathmandu Neurology Clinic

Dr. Dr. Jitendra Prasad Yadav (NMC 8029), Consultant Neurologist with 15+ years at National Trauma Center (NAMS), provides same-day evaluation for new facial weakness at Kathmandu Neurology Clinic & Cognitive Center, Durbar Marg, Opposite of Yak & Yeti Hotel:

• Urgent clinical assessment to distinguish Bell's palsy from stroke and other causes
• Comprehensive eye care education and prescription (artificial tears, ointment, patching)
• Corticosteroid prescription when indicated and safe (diabetes/glucose check first)
• Antiviral consideration in severe or early-presenting cases
• Follow-up scheduling at 2 weeks, 1 month, 3 months to monitor recovery
• Ophthalmology coordination if eye complications develop
• Physical therapy referral if no improvement by 3 months
• MRI brain and temporal bone if atypical features or recurrence