Bell's Palsy vs Stroke on the NCLEX
The forehead rule, eye care, and honest reassurance.
A drooping face has two very different explanations. The forehead decides.
The forehead rule
Bell's palsy paralyzes the entire half of the face, forehead included. The patient cannot raise the eyebrow or fully close the eye on that side. Stroke spares the forehead. The forehead has input from both sides of the brain, so a central lesion still lets the patient wrinkle both brows while the lower face droops. Ask the patient to raise the eyebrows and close the eyes tight. Forehead moves: think stroke. Forehead frozen: think Bell's.
The rest of the picture
Bell's palsy is a peripheral facial nerve (CN VII) problem, often after a viral illness. Onset over hours to a day or two. Face only: no arm weakness, no leg weakness, no slurred language content, no vision field loss. Any facial droop plus arm drift, speech change, or confusion is a stroke workup, and time is brain. When in doubt, treat it as a stroke and escalate.
Eye care is the nursing priority
The affected eye cannot blink or close fully, so the cornea dries and ulcerates. Teach: artificial tears during the day, lubricating ointment at night, and tape the eyelid closed or wear an eye patch while sleeping. Sunglasses outdoors. Report eye pain or redness.
Treatment and reassurance
Corticosteroids started early (within about 72 hours of onset) improve recovery. Antivirals are sometimes added. Practical care: chew on the unaffected side, small bites, mouth care after meals (food pockets on the weak side), gentle facial massage or exercises as directed. Honest reassurance: most patients recover substantially within weeks to months. It is not a stroke and it is not permanent for most people.
Frequently asked
Patient panics that they are having a stroke. Their forehead is completely paralyzed on that side and nothing else is weak. What do you say?
Explain the findings fit Bell's palsy, a facial nerve inflammation, not a stroke, and that the provider will confirm. Most people recover well.
Why tape the eye at night?
The lid cannot close on its own. An open, dry eye overnight risks corneal abrasion and ulceration.
Quick check
Loading a question…
How ready are you right now?
10 real NCLEX questions, free, in your browser. See how close you are to ready and which subjects are costing you.
Try 10 questions free