I went to a male doctor to show coughing. He started the checkup by touching the top of my left breast through stethoscope, followed by bottom of left breast (over the breast part and not the lungs part). He then did the same (both top and bottom) for the right breast too. This surprised me. Is this necessary in cough checkup? I don't want to blame someone just out of doubt and want to give them benefit of doubt. Please let me know.