Bell’s palsy is not technically “cured” by treatment, but it resolves on its own in the vast majority of cases. About 80% of people recover completely without any treatment at all, and with prompt steroid therapy started within the first 72 hours, recovery rates climb to 90% to 97%. Most people begin to see improvement within two weeks, though full recovery can take three to six months.
What Recovery Actually Looks Like
Bell’s palsy follows a fairly predictable pattern. Facial weakness or paralysis worsens over the first few days, stabilizes, then starts improving around the two-week mark. For many people, function returns gradually over several weeks. The full timeline to complete recovery is typically three to six months.
The degree of initial paralysis matters. Someone with mild weakness who can still close their eye with effort is in a very different situation than someone with complete paralysis on one side of the face. Doctors use a six-point grading scale to assess severity, ranging from mild asymmetry with full eye closure to complete paralysis with no movement at all. People with milder initial symptoms tend to recover faster and more completely.
How Steroids Improve the Odds
A short course of oral steroids is the first-line treatment, and timing is critical. Starting within 72 hours of symptom onset significantly improves the chances of full recovery. The typical regimen is a moderate dose taken daily for about 10 days, including a gradual taper.
Antiviral medications are sometimes prescribed alongside steroids, since Bell’s palsy is thought to involve reactivation of a herpes virus in the facial nerve. However, the evidence for adding antivirals is weak. A guideline published in Neurology found that combining antivirals with steroids does not improve recovery by more than 7% compared to steroids alone, and the actual benefit may be zero. If your doctor offers antivirals, the potential upside is modest at best.
One notable exception: in children, steroids may not make a meaningful difference. A study of 187 children found no difference in recovery rates between those given steroids and those given a placebo. Children generally recover well regardless.
Protecting Your Eye During Recovery
The most important thing you can do while waiting for recovery is protect the eye on the affected side. When the eyelid can’t close fully, the cornea dries out and becomes vulnerable to scratches and irritation. About 40% of Bell’s palsy patients develop some degree of corneal surface damage.
Keep the eye moist with lubricating drops throughout the day and an ointment at night. Wear glasses or goggles during the day to shield the eye from wind, dust, and accidental contact. At night, use an eye patch. If your eye won’t close on its own, use your finger to manually blink it shut throughout the day. These steps sound simple, but they prevent the most common complication of Bell’s palsy.
When Recovery Is Incomplete
About 15% to 20% of people don’t fully recover, and the most common lasting issue is synkinesis. This happens when the facial nerve regrows but some fibers reconnect to the wrong muscles. The result is involuntary movements paired with intentional ones. For example, your eye might twitch when you smile, or your mouth might move when you blink. Synkinesis develops in roughly 15% of Bell’s palsy cases.
Synkinesis isn’t dangerous, but it can be frustrating and socially noticeable. Physical therapy focused on facial retraining can help. A therapist teaches you to isolate specific facial movements and suppress the unwanted ones, gradually retraining the nerve-muscle connections. This kind of therapy works best when started early, before the abnormal movement patterns become deeply ingrained.
In rare cases where nerve damage is severe and recovery stalls, surgical options exist. Nerve decompression surgery is sometimes considered when electrical testing shows that more than 90% of the nerve fibers have degenerated within the first two weeks. This is uncommon and reserved for the most severe presentations.
How to Tell It’s Bell’s Palsy
One critical distinction separates Bell’s palsy from a stroke. In Bell’s palsy, the entire half of the face is affected, including the forehead. You won’t be able to raise your eyebrow on the affected side. In a stroke, the forehead is spared because it receives nerve signals from both sides of the brain. If you can raise your forehead but the lower face is drooping, that’s a red flag for stroke and requires emergency care.
Bell’s palsy is a diagnosis of exclusion, meaning doctors rule out other causes of facial paralysis (Lyme disease, tumors, ear infections, autoimmune conditions) before settling on it. If your symptoms don’t follow the typical pattern, or if you have additional neurological symptoms like limb weakness or difficulty speaking, further testing is warranted.
Can It Come Back?
Bell’s palsy can recur, though most people experience it only once. Recurrence sometimes happens on the same side, sometimes the opposite side. People with diabetes, a family history of Bell’s palsy, or immune system conditions may face a higher risk of repeat episodes. A recurrence follows the same general timeline and treatment approach as the first episode, and the prognosis remains good.