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The most common cause of peripheral facial nerve palsy is Bell’s palsy, in which the facial nerve’s function is disturbed along its route outside the brain without a clear single cause. Inflammation leads to swelling that compresses the facial nerve. Other causes include Ramsay Hunt syndrome related to shingles, Lyme disease, tumors and trauma.
A central facial palsy may be caused, for example, by a stroke, in which only the lower half of the face is weakened while forehead and eye function is preserved. It is usually accompanied by other stroke symptoms.
The palsy starts abruptly and reaches its peak within 72 hours. Facial nerve palsy may be partial or complete, and it typically affects one side of the face.
Facial nerve palsy always requires immediate medical attention. At the appointment, the physician confirms the diagnosis and rules out causes requiring urgent care. A course of cortisone started early can support recovery. If shingles is the cause, an antiviral medicine is added.
In most cases of facial nerve palsy, the outlook is good and symptoms improve over time. Most people recover fully. Nerve recovery takes time and requires patience. Eye protection is crucial in the early phase: lubricate the eye regularly and tape the eye closed at night. To prevent synkinesis (involuntary linked movements), avoid exaggerated facial expressions and electrical stimulation of the face.
Facial physiotherapy is an important part of rehabilitation. Specialist facial physiotherapy includes soft tissue techniques, relaxation, controlled movement exercises (Facial Neuromuscular Retraining) and guidance for home exercises. The aim is to support facial nerve recovery, restore facial symmetry and prevent or reduce synkinesis. Incorrect training may worsen symptoms, so seek guidance from an experienced professional.
There are no known preventive measures for Bell’s palsy, but risk management helps with other causes. The shingles vaccine reduces the risk of Ramsay Hunt syndrome in older adults. Facial palsy related to Lyme disease can be prevented by treating the infection promptly after a tick bite if it is detected immediately. In the acute phase, good eye protection prevents corneal damage. Early initiation of treatment and guided facial physiotherapy reduce the risk of permanent symptoms and synkinesis.
Go to the emergency department or a doctor the same day if one-sided facial weakness or paralysis begins suddenly. Prompt treatment increases the chances of recovery. Seek emergency care immediately if facial symptoms are accompanied by difficulty speaking, limb weakness, pain, balance problems, severe headache or blurred vision – these may indicate a more serious cause such as a stroke.
In the acute phase, eye protection, rest and early treatment are key. Everyday activities, such as eating, speaking and making expressions, may be more difficult for a while. Most people recover well, but some may have lingering facial muscle weakness or synkinesis that can be treated with facial physiotherapy and botulinum toxin. Gentle, individualized practice under professional guidance is the safest way forward.
If everyday life feels overwhelming or symptoms worsen, book an assessment. Start with Digital Clinic 24/7 or book an appointment for facial physiotherapy.
Facial physiotherapy
Promotes the recovery of facial muscle function, symmetry and expressions.
Geriatric physiotherapy
Individual and comprehensive rehabilitation.
Neurological physiotherapy
Helps to improve functional capacity if a neurological illness or injury is complicating your life.
Paediatric physiotherapy
Rehabilitation provided by a physiotherapist that aims to promote the child's functional capacity and mobility.
Physiotherapy
Promotes and maintains mobility and functional capacity also supports preventing musculoskeletal injuries.
Sports physiotherapy
Helps to prevent sports injuries, start exercising or improve your performance.
Bell’s palsy is the most common cause of peripheral facial nerve palsy, in which the facial nerve’s function is disturbed along its route outside the brain without a clear single cause. Inflammation causes swelling that compresses the facial nerve. Other causes include shingles (Ramsay Hunt), Lyme disease, tumors and injuries. In central palsy, the cause is in the brain, often a stroke.
The speed and extent of recovery depend on the cause of the palsy and the degree of facial nerve injury. Symptoms often ease over weeks, with significant recovery occurring in 3–6 months. In partial palsy, most recover completely. In complete palsy, recovery may be slower and some may have mild residual symptoms or synkinesis.
Typical symptoms include one-sided facial weakness or drooping, difficulty closing the eye, taste disturbances, and difficulties with speaking and eating. With shingles, ear pain and a blistering rash may occur.
Yes. Most patients recover fully or almost fully, especially if treatment is started early and the eye is well protected. Facial physiotherapy facilitates recovery and reduces lasting harm.
In peripheral palsy due to facial nerve dysfunction, the forehead does not wrinkle and the eye does not close because the entire side of the face is weak. In brain-origin central palsy, the forehead and eye usually function normally, but other stroke symptoms may be present, such as limb weakness or speech disturbance.
Use preservative-free lubricating drops during the day and protective glasses if needed. Assist blinking with a finger. At night, use a long-acting gel or ointment. If the eyelid remains slightly open, close it at night with skin-friendly tape.
Early corticosteroid therapy improves recovery in peripheral facial nerve palsy. In palsy caused by shingles, an antiviral medication is added. The need and timing of medication are assessed by a physician.
