I only have a slight problem with blushing now. I commented about it to my teacher, who didn't notice anything. So it just goes to show that it's all in your mind. If I worry about blushing, then it's probable that I will. Just don't worry about it. My blushing stemmed from the fact that I was unsure of myself and always second-guessing how I was doing socially. Just don't do it. Value yourself enough not to worry or feel insecure when you're talking to people.
You can still be your same self, only be comfortable in your own skin! You can go from flushed and fustrated like this smilie
to happy and secure like this smilie
! The only sign that blushing is giving you is that there could be certain thoughts, perceptions, or beliefs that might need to be changed.
Much love and I hope you suceed in overcoming it!