<s>[INST] my sister has been experiencing pain in the throat since May after a shingles shot.  Symptoms occured exactly2 weeks after and she has been going to an oncologist, ent, gastronologist and none have been able to find what iscausing the pain.  She also had an outbreak of sores in her throat after the vaccine in which md thought it was avirus but no one has biopsied to see why she is having this horrible pain.  She is now beside herself since ct scans,mris, endospies(2) have been performed and still severe pain.  She is a cancer survivor and is horrified of cancer of the throat.  What should she do?  Could she have had a slight outbreak of shingles and is having the pain that comes after shingles.  Very worried and do not know where to turn now. [/INST] pain as a presentation of cancer is very rare and presence of pain usually indicates inflammation or infection. as she had shingles, must have developed post herpetic neuralgia which causes a severe radiating pain on slight touch of affected area. it requires physician or neurologist consultation for the use of anticonvulsants. in severer cases ablation of the affected ganglion may be useful.you have not mentioned the type of cancer she had earlier? </s>