Sorry to hear, not trying to be funny. Call the doctor, and reminiscent or recurrent cancer, although unlikely, should be addressed, and ruled out. If you had this pain before Tx, you would more likely have pain after Tx than someone who didn't initially. It could be neuropathic pain, which is treated with meds like Lyrca, Gambapentin, and then for swelling that may be irritating something, corticosteroids like prednisone. I had ear shooting pain before Tx, and for quite a while afterwards, and still do occasionally . I took oxycodone, and switched to Fetynal patch. Now I can't even handle one oxycodone, and was sick for 4 days last week after taking one for tooth pain, which also causes shooting pain to the ear. Hope this helps.