Help Drop down menu changes when ear touches it during call

[Bill23707]

Galaxy S3
Seems like a dumb question but I have studied my phone settings and don't see a way to fix this. When talking on phone, the menu on top, the one with wi-fi, gps, sound, etc changes settings due to my ear being against the phone. Besides making the noises while talking, when I end the call i usually find settings changed, ie gps on or off, mute, etc. Very frustrating and more so that I can't figure out how to correct this. Surely lots of people have had this issue, but I haven't been able to find a post on it.

 

[GTWalling]

While in the Phone dialer hit the menu soft key and choose settings. Put a check mark in Auto screen off during calls.

 

[Max Londoner]

Oh. I also get this problem on an S4. Did you find a fix?
And no the "auto screen off during calls" doesn't fix it !

During the call all sorts of settings get changed and there's a buzz in my ear when they get changed! My ear seems to be treated like a finger even though I am in a call!