Masters to Improve Credentials

So i graduated with a Bachelors in December 2013. My overall GPA is 3.136. I didn't do well in most science classes. Got a bunch of C's on my transcript and took the DAT last summer. AA 17. I'm wondering what type of Masters Degree to apply for so i can improve my credentials. I read somewhere over here that i need to stay away from Public Health. Also, someone said to go back to undergrad and retake all those science classes.

Not sure how to proceed....