How can I stop chewing my fingers?

I have be chewing on my fingers ever since i quit chewing my nails 10 years ago, it get so bad that they bleed and throb. I hold to put bandaids sometimes too. Its mostly my thumbs but lately my index fingers too, I know its disgusting and I get so embarrased when relatives see my hands.
I try to use pin clippers to get the edges stale so I wont bite them but I always do. I don't bite my nail at all so anything painted on them wont support me.

Answers:

urget need of facilitate!?

knock your teeth out. then youll own bloody gums to go near your bloody fingers ! :] wow im such great help ! :]

What are factor that cause poor blood flow when giving blood?

start biting your nail again, thats alot better than chewing on your actualy fingers.
my sister inlaw has this problem and she is very bad, she makes them bleed also, she have tied just roughly EVERYTHING but nothing works, she sitll does it.. try putting super paste on the end of your fingers and chew that sour maybe, it will afford you somthing else to do