What can cause right side facial paralysis, right side lower head pains and a temperature?

Facial pain : You should read about bell'palsy. You describe facial pain with paralysis, and pain about your ear. Generally this is a virus causing swelling of the facial nerve. Should see your doctor about this. The sooner the better.

Possible infection: I would see a doctor right away. A dentist or ENT physician would be appropriate. The most common cause of head pain is a tooth problem.