Surprisingly, lately on the television news I've seen fuzzy images of the likes of their shapes taken during a MRI or CT scan of the brain and of the sinus cavity. Doctors could be misdiagnosing the situation when they call it cancer. Perhaps they should also take scans later on and see if it has moved in any way.
I still find these earwigs outside nearly every time I look for them. The right amount of ultrasonic waves might be able to kill them somehow or drive them away. That might be safer and possibly more effective than radiation or chemotherapy.
Should I care so much and be so concerned? I guess my last word on the subject is that you can do what you want to do, I suppose. And, believe what you want to believe.