Follow-Up Management for Bell's Palsy Patients
Patients who have completed treatment for Bell's palsy should be reassessed for incomplete recovery at 3 months after symptom onset, with referral to a facial nerve specialist if recovery is incomplete. 1
Assessment of Recovery
- Use the House-Brackmann scale to quantify facial nerve function:
- Grade 1: Normal facial function
- Grade 2: Mild dysfunction (slight asymmetry at rest)
- Grade 3: Moderate dysfunction (obvious but not disfiguring difference)
- Grade 4: Moderately severe dysfunction (obvious weakness/disfiguring asymmetry)
- Grade 5: Severe dysfunction (barely perceptible movement)
- Grade 6: Total paralysis (loss of tone, asymmetry, no movement) 1
Indications for Referral
Referral to appropriate specialists is necessary in the following situations:
- New or worsening neurologic findings at any point (refer to neurologist)
- Ocular symptoms developing at any point (refer to ophthalmologist)
- Incomplete facial recovery 3 months after initial symptom onset (refer to facial nerve specialist) 2
Management of Complications
Eye Protection
- For patients with incomplete eye closure:
- Artificial tears (during daytime)
- Lubricating ophthalmic ointments (at night)
- Eye patching or taping
- Moisture chambers
- Sunglasses for daytime protection 1
Functional and Psychological Impairment
Long-term functional impairments may include:
- Incomplete eye closure
- Lacrimal dysfunction
- Nasal airway obstruction
- Oral incompetence 2
Psychological support may be needed for:
- Difficulty expressing emotion
- Social interaction challenges
- Stigmatization due to appearance 2
Reconstructive Options
For patients with incomplete recovery, discuss potential reconstructive procedures with a facial plastic and reconstructive surgeon:
- Eyelid weights
- Brow lifts
- Static and dynamic facial slings 2
Role of Physical Therapy
The evidence regarding physical therapy for Bell's palsy is inconclusive:
No standardized therapy modalities or protocols exist
Several approaches have been studied including:
- Thermal treatment
- Electrotherapy
- Massage
- Facial exercise
- Biofeedback 2
Mime therapy (massage, relaxation exercises, inhibition of synkinesis, and emotional expressive exercise) is the most common form but has limited evidence supporting its effectiveness 2
Physical therapy may be beneficial specifically for patients with severe Bell's palsy (House-Brackmann grade V/VI) 3, though the American Academy of Otolaryngology-Head and Neck Surgery makes no formal recommendation due to limited evidence 2
Important Caveats
- Spontaneous recovery occurs in 70-80% of patients within 3 weeks to 3 months 4
- It can be difficult to separate the effects of physical therapy from spontaneous recovery 2
- A Cochrane systematic review found no significant difference between physical therapy and untreated control groups 2
- Consider psychological support or counseling for patients with persistent facial paresis/paralysis who may experience depression 2
Remember that timely follow-up and appropriate referrals are crucial for optimizing outcomes and quality of life for patients with Bell's palsy who have incomplete recovery.