![]() ![]() Comparisons may be useful for a differential diagnosis: Symptoms of the following disorders can be similar to those of Bell’s palsy. Crocodile tears (tears not brought on by emotion) associated with facial muscular contractions occasionally develop in the aftermath of Bell’s palsy, particularly when eating. If, as recovery proceeds, the nerve fibers regrow to muscles other than the ones they originally supplied, there may be voluntary muscle movements of the face accompanied by involuntary contractions of other facial muscles (synkinesia). The affected muscles usually regain their original function within one to two months. If facial paralysis is only partial, complete recovery can be expected. Recovery from Bell’s palsy depends on the extent and severity of damage to the 7th cranial nerve. In some cases, an affected individual’s response to a pinprick behind the ear is also decreased. Some people with Bell’s palsy experience a loss of the sense of taste on one side of the mouth, drooling and an increased sensitivity to sound (hyperacusis) on the affected side of the head. If the compressed region of the facial nerve is higher than certain facial nerve branches, there may be a decrease in saliva and/or tear production. People with Bell’s palsy may not have a corneal reflex, which means that the eye on the affected side does not close when the cornea is touched. This may result in the inability to close the eye on the affected side. Often the opening between the upper and lower eyelids (palpebral fissure) is enlarged and remains open during sleep. In severe cases of Bell’s palsy, the facial muscles on the affected side are completely paralyzed, causing that side of the face to become smooth, expressionless and immobile. Approximately 80% of cases resolve within three months. Most cases resolve in two to three weeks. In most cases of Bell’s palsy, only facial muscle weakness occurs, and the facial paralysis is temporary. ![]() The symptoms may begin suddenly and progress rapidly over several hours and sometimes follow a period of stress or reduced immunity. The early symptoms of Bell’s palsy may include a slight fever, pain behind the ear and weakness on one side of the face. 5 Myths About Orphan Drugs and the Orphan Drug Act.Information on Clinical Trials and Research Studies. ![]()
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