Calling all mothers

Ok, I know I've posted like crazy, but I promise this is it. I need your help moms! (ok, I don't think anyone but my family reads this blog) so I need your help family! How do you stop your 10 month old son from biting! Yes, that's right. He constantly bites. Mostly me, but he will attack anyone and everyone. He has bitten me on my cheek, neck, arms, legs, and anywhere else he can get his sharp little teeth on. He really enjoys grabbing the back of your neck and pulling his face towards yours with a wide open mouth ready to chomp. He has left a mark on my mom, and almost bring me to tears. It's painful. I don't know how to make him stop. When he does this, I pull him away, put my finger on his mouth and tell him "No." He kind of sort of understands the word, but it's not working! I think it's getting worse, actually I know it's getting worse because today when he bit my leg and told him No, he then turned to his arm and proceeded to bite himself! Yeah, that's right. He didn't do it hard, but it definitely turned his arm red. My mom said my cousin Stacey was a biter and would always leave marks, but I think that's when she was older. I need help with my 10 month old! So if anyone reads my boring blog and has any helpful tips please, please, please fill me in!