After having a filling & root canel (July 1) I began hurting on the left side of my face. It hurt like another abscess but the dentist says there is nothing . He gave me an antibiotic & it almost killed me (I have serious problems with most drugs) after recovering from the antibiotic the pain It moved to my ears & sometime to my other teeth. My ears stopped up & were Ringing all the time. then got better.The pain is less sometimes & horrible at others...now it has gotten really bad & my ears have stopped up again & constant Ringing & roaring. I have No Insurance. Is this an infection? After 6 months and counting, What can I do? Please help me…I feel totally lost and helpless.