it would not be prudent to blindly guess so my suggestion to you is to see a medical professional or dermatologist so that you can have his itchy area properly examined diagnosed and treated. there can be sooooo many different causes so it is going to take a hands-on evaluation to solve this mystery.
behind my ear where the jaw bone is at is constantly itchy on both sides of my neck. . only by pressing under both my ears does it relieve the itchy ness. what could this be from?