What are the red dots on my tongue?

Papillae, taste buds. http://www.google.com/imgres?imgurl=http://www.familymedschool.com/wp-content/uploads/2011/09/tongue2.jpg;imgrefurl=http://www.familymedschool.com/one-day-medical-school/anatomy-of-the-mouth/;h=342;w=350;sz=20;tbnid=estazrfe5atpvm:;tbnh=90;tbnw=92;zoom=1;usg=__d6zil7mjbpv6x2hq7dflsy32ois=;docid=pl5jwrqkfgqa0m;sa=x;ei=4vxlurtfz6nga_aygtg;sqi=2;ved=0cc8q9qewag this will show you the tongue anatomy.
Red dots. Size, location, duration, sensitivity? Not enough room here to list all the causes of red dots in the oral cavity. Please see your Dentist for differential diagnosis.
Visual DX. Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck!