Bell’s palsy temporarily weakens or paralyzes facial muscles. People with Bell’s palsy develop a droopy appearance on one — or sometimes both — sides of their face. The condition usually isn’t serious and often goes away in a few months without treatment.
Autoimmune Response: The body’s own immune defense mistakenly attacks the protective myelin sheath surrounding the facial nerve.
Ischemia: Reduced blood flow and oxygen delivery to the nerve cells, causing localized tissue stress and functional shutdown.
Systemic Stress: High physical stress, intense exhaustion, or a lack of sleep can lower immune function, allowing dormant nerve-based viruses to reactivate.
Herpes simplex 1 (a virus that causes mouth infections, like cold sores).
In conclusion, if you get Bell’s palsy, you may be embarrassed by how your face looks. The good news is that these symptoms usually improve with time. See your healthcare provider when you first get symptoms. Corticosteroid treatments can speed recovery if you start them within 48 hours of noticing symptoms. Your provider can also rule out other, more serious conditions that cause facial paralysis. All informations are gotten from Mayo clinics.