Can bell's palsy cause complete deafness in the ear and swollen lymph nodes down to the clavicle on the affected side of face?

No: Bell's palsy is due to paralysis of the 7th (facial) cranial nerve on one side. Hearing is affected by damage to the auditory division of the 8th cranial nerve. It is possible, however, to have the same causative agent affect both of these simultaneously, although unusual. The enlarged lymph nodes are also a result of whatever is causing the paralysis rather than a part of bell's palsy.

Shouldn't: Not common w/bell's. Should see a neurologist for evaluation to be certain is not another issue.

Not likely: There may be some other underlying cause for all of this. It's possible that the bell's palsy was misdiagnosed and now with these other issues the true issue can b detected. The lymph nodes and decreased hearing are concerning and a visit to an ENT as well as imaging likely with a ct scan with contrast is indicated. If the nodes are large and mobile a biopsy may b easy to as well. Must see md.