Main
- Facial nerve neuritis — inflammation of the seventh cranial nerve, in which the facial muscles of one half of the face become weak.
- Diagnosis and treatment are carried out by a neurologist; during the recovery period a reflexologist is involved, sometimes an otorhinolaryngologist.
- A common cause is a previous viral infection, less often hypothermia, facial trauma, tumours and diabetes mellitus.
- Warning signs — weakness of the face with speech impairment, weakness in the arm or leg, loss of consciousness: emergency help is needed.
- The earlier treatment is started, the higher the chance of restoring facial movements, so one should not delay a visit to the doctor.
What is facial neuritis
Facial nerve neuritis is inflammation or damage to the nerve that controls the facial muscles of one half of the face. Below we explain how this condition develops, what causes it and who is affected by it more often.
What happens in the body
The facial nerve passes through a narrow bony canal, where, during inflammation, it swells and becomes compressed. Because of this, signals from the brain to the facial muscles of one side of the face stop getting through. A person notices that they cannot raise an eyebrow, screw up an eye or stretch their lips into a smile. The muscles lose tone, and the affected half of the face looks drooping and immobile. The corner of the mouth droops, the crease on the forehead smooths out, and the eyelid stops closing completely. Inflammation most often develops after a viral infection, when the immune response also affects the nerve itself. If the eye does not close completely, it should be protected from drying out and dust until a visit to the doctor.
What causes it to develop
- A previous viral infection: afterwards the immune response often affects the nerve, and this is the most common cause of inflammation.
- Exposure to cold: a draught or cold wind causes spasm of the vessels supplying the nerve and triggers its swelling.
- Stress: severe nervous tension weakens the body's defences and increases the nerve's vulnerability to damage.
- Injury to the face or head: a blow, a fall or a fracture can directly damage the nerve fibres and disrupt conduction.
- Tumours or other space-occupying formations: growing tissue compresses the nerve in the canal and gradually disrupts its function.
- Metabolic disorders, for example in diabetes mellitus: excess glucose in the blood over time damages nerve fibres and slows their recovery.
Who is affected by it more often
Facial nerve neuritis occurs in people of various ages, but it is detected more often in middle-aged adults. Men and women are affected roughly equally, with no noticeable difference between them. The risk is higher in those who frequently have viral infections and do not manage to recover between them. Hereditary predisposition also plays a role: if close relatives have had similar episodes, the likelihood is higher. People with diabetes mellitus and other metabolic disorders are at risk because of altered metabolism. Those who work outdoors in winter more often encounter exposure to cold, which provokes inflammation. If the face is distorted, one should not wait for it to pass on its own: seeking medical help early helps preserve muscle movement.
What symptoms can occur?
Facial nerve neuritis manifests primarily as a change in facial expressions on one side of the face. It is important to notice the first signs in time and understand when urgent medical help is needed.
How it is noticed at the very beginning
Facial nerve neuritis usually begins with a sensation that one half of the face has become unusually heavy or does not obey well. A person notices that they cannot wrinkle their forehead or raise an eyebrow on one side. In the morning while washing, water may leak from the corner of the mouth, and toothpaste may collect behind the cheek. Many attribute this to fatigue, lack of sleep or a draught, and postpone a visit to the doctor. Gradually it becomes difficult to smile, puff out the cheeks or close one eye completely. At the same time, pain or discomfort appears in the ear area, and sounds on the affected side seem too loud. If facial expressions have changed suddenly, one should not wait for it to pass on its own — see a neurologist in the near future.
Signs that occur most often
- Drooping of the corner of the mouth: one corner of the mouth sags downwards, which impairs speech and causes food to leak out while eating.
- Smoothing of the nasolabial fold: the fold between the nose and the corner of the mouth on one side becomes less noticeable or disappears.
- Inability to close the eye: the eyelid on the affected side does not close completely, the eye remains partially open even when trying to squeeze it shut.
- Weakness of the facial muscles: it is difficult to smile, frown or puff out the cheeks, movements on one side are performed with effort.
- Pain or discomfort in the ear area: unpleasant sensations occur near the auricle and intensify with facial movements.
- Increased sensitivity to sounds: ordinary sounds on the affected side are perceived as louder and irritating, and the taste of food changes.
When to seek help urgently
Examinations and tests
Examination for facial nerve neuritis begins with a clinical assessment, and additional methods only clarify the cause. Below is a breakdown of what exactly the doctor evaluates and which investigations help to understand the condition of the nerve.
How the examination begins
The diagnosis is made by a neurologist after an examination and assessment of the movements of the facial muscles, and this is the first step of the entire examination. The doctor checks the symmetry of the face, muscle strength, taste and sensation, comparing the healthy and affected sides. The patient is asked to raise the eyebrows, squeeze the eyes shut, bare the teeth and puff out the cheeks, noting where movements are weakened. Separately, it is clarified when the first changes appeared and how they developed in the first days. Such a check shows which branches of the nerve are affected and how pronounced the movement impairment is. Based on the results of the examination, the neurologist decides whether additional investigations are needed to find the cause. If the weakness increases or affects only part of the face, this becomes a reason to prescribe more detailed diagnostics.
What is prescribed and what it shows
What is worth preparing for the appointment
- Discharge summaries: take all medical documents describing previous visits so that the doctor can see the full picture of the condition.
- List of complaints: note in advance when the facial asymmetry appeared and how it changed day by day.
- Test results: bring recent laboratory data if they have already been done for other reasons.
- Images and reports: if tomography or other head investigations were done before, show them to the neurologist.
- Observations of close ones: ask relatives to note which facial movements have changed most noticeably.
- Questions for the doctor: write down in advance what exactly is unclear to you, so that you can discuss it at the appointment without rushing.
Which doctor should I see?
This section explains which specialist to consult for facial nerve neuritis and how care is organised. Below — who manages the condition, what treatment consists of, and what depends on the patient themselves.
Which specialist manages this condition
Facial nerve neuritis is managed by a neurologist, and during the recovery period a reflexologist is also involved. The neurologist examines the facial muscles, checks facial symmetry and assesses how fully movement has been preserved. The reflexologist works on points on the face and body to stimulate weakened muscles and restore their tone. If there is no specialist nearby, start with a general practitioner: they will examine you and refer you to the right specialist. Delaying seeking help means the muscles remain without load for longer and recover more slowly. Some movements may not return fully if treatment is started late. Therefore, at the first signs of facial asymmetry, it is sensible not to wait but to book an appointment with a neurologist straight away.
What treatment consists of
- Selection of therapy by the doctor: the specialist assesses the cause and severity of the neuritis and determines which areas of care are needed in your particular case.
- Anti-inflammatory and antiviral treatment: it is prescribed according to indications to reduce inflammation and address a possible viral cause.
- Painkillers: they are used when neuritis is accompanied by pain, and this allows the recovery period to be more comfortable.
- Therapeutic exercise and massage: special exercises and gentle work on the muscles help gradually restore the mobility of the facial muscles.
- Physiotherapy: physical methods of treatment support tissue recovery and complement gymnastics and massage.
- Surgery when indicated: it is discussed in rare cases when conservative methods do not produce the desired effect.
What depends on the patient themselves
Regular follow-up with the doctor largely determines how fully the facial muscle movements will recover. If you attend check-ups according to the schedule set, the specialist will notice any slowing of recovery in time and adjust the care. Home exercises for the facial muscles should be done daily, not occasionally, otherwise progress is quickly lost. Many people stop exercising when the face looks almost symmetrical, and thereby slow down the consolidation of the result. Massage and gymnastics should be continued for as long as the doctor recommended, even if you feel well. It is also worth telling the specialist about pain, new sensations and difficulties with performing the exercises. Such open contact helps to select a load that suits you and does not harm the weakened muscles.
What helps prevent an exacerbation?
Prevention of facial nerve neuritis does not come down to a single measure, but a person can reduce some of the risks themselves. Below — about habits, observations and regular visits to the doctor.
What to change in habits
Daily habits affect how often conditions arise that can trigger facial nerve neuritis. Timely treatment of viral infections reduces the burden on the body and lowers the likelihood of complications from the nervous system. Exposure to cold, especially draughts and cold wind, often becomes the trigger for an exacerbation, so it is worth dressing for the weather and not sitting under an air conditioner with your face exposed. Stress management also matters: chronic tension depletes the body's defences and makes it more vulnerable. This can be noticed by disturbed sleep, irritability and constant fatigue, which in themselves worsen how you feel. If such signs persist for a long time, it is reasonable to discuss them with a doctor rather than wait until new complaints appear. Seeking help early at the first signs helps to start care in time and improves recovery.
What is worth keeping under control
- Viral infections: it is important to treat them in time rather than carry on through them, because an advanced process increases the risk of complications.
- Exposure to cold: make sure that your face and neck are not exposed to cold for long or to a flow of cold air.
- Stress levels: notice how you sleep and rest, since constant tension reduces the body's resilience.
- First signs: facial asymmetry, weakness of facial expressions or unusual sensations require a visit to the doctor without delay.
- Regular check-up: routine visits help to notice changes before they become pronounced and persistent.
How often to see a doctor
Regular monitoring is needed even when you feel well and nothing is troubling you. The doctor assesses the state of the facial muscles, checks facial symmetry and clarifies whether any new complaints have appeared since the last time. If a person has had a viral infection or severe exposure to cold, it is worth mentioning this at the appointment, since such events increase attention to the state of the nerve. With chronic stress and disturbed sleep, a conversation with the doctor helps to build a gentler routine and to notice alarming changes in time. Routine visits provide an opportunity to discuss self-monitoring and to understand which signs require urgent attention and which can be calmly observed. It is not worth skipping check-ups: some changes develop gradually and in the early stage are almost imperceptible to the person themselves. A reasonable approach is to agree with the doctor on a clear schedule of monitoring and to follow it, and with any new symptoms not to wait for the next routine visit.
What is worth remembering
Facial neuritis rarely passes without a trace if treatment is delayed, so it is important to understand the general guidelines. Below is what is worth keeping in mind when a discussion about facial neuritis is drawing to a close.
Key takeaways
Facial neuritis is a condition in which the facial expressions of one half of the face are affected, and this is almost always noticeable to others before the person themselves realises there is a problem. Asymmetry, muscle weakness and the inability to perform habitual movements such as closing the eyes tightly or smiling are reasons not to wait for it to get better on its own. Facial neuritis is not always associated with exposure to cold: infections, inflammatory processes and other circumstances identified by a doctor can trigger it. Recovery depends on how early help is started and how precisely the specialist's recommendations are followed. Some people postpone the visit, hoping for a quick improvement, and lose time when the nerve especially needs support. Facial neuritis requires monitoring: even with clear improvement, it is important to complete the prescribed stages to the end. If facial expressions do not return to their usual appearance, this is a reason to discuss the situation with a doctor again, rather than changing the approach on your own.
