Fear of public speaking

I have an awful phobia of public speaking, when ever I have to present something in front of the class, or even reading something out in front of a large group, I panic and get nervous and get breathless.

I get embarassed easily, and I get really red in the face. This happens a few times a day, and I wish this didn't happen.

I've tried talking to a perfessoinal, but that didn't work, is there any tablets I could take or any tecniques I could use to overcome my phobia??

This is effecting my school work, so please someone help me.