The Moderna COVID-19 vaccine label already contained a warning about Bell’s Palsy.
Bell’s palsy is an unexplained episode of facial muscle weakness or paralysis. It begins suddenly and worsens over 48 hours. This condition results from damage to the facial nerve (the 7th cranial nerve). Pain and discomfort usually occur on one side of the face or head.
Bell’s palsy is not considered permanent, but in rare cases, it does not disappear. Currently, there is no known cure for Bell’s palsy; however, recovery usually begins 2 weeks to 6 months from the onset of the symptoms. Most people with Bell’s palsy recover full facial strength and expression.
Health Canada advises patients to seek medical attention if they experience any of the following symptoms after vaccination:
- uncoordinated movement of the muscles that control facial expressions, such as smiling, squinting, blinking or closing the eyelid
- loss of feeling in the face
- tearing from the eye
- lost sense of taste on the front two-thirds of the tongue
- hypersensitivity to sound in the one ear
- inability to close an eye on one side of the face