Watch the video below at your own discretion. I recommend you not try it unless you are willing to sabotage yourself. This is a very discrete method of repression that is very dangerous. It is also called "tapping".
After trying this I felt the negative feelings go away, but I also felt quite dead and zombie-fied. It is extremely bad and any feeling you apply this to will, in the long run, pull you down. If you are interested in trying it to see the dangerous effectiveness of repression, however, it is your perogative as it is an interesting psychological effect.
Maintaining the bad feeling while forcing the body to react as if everything is normal (physically and mentally) is, in essence, creating a barrier between your negative feeling and your reactions to it. So all you are doing is preventing yourself from reacting to it by forcing your body to behave normally.
I felt inclined to post this as even though it will have little to no effect on whether you decide to use it or not to solve your problems in the short term, it may prevent someone from buying into the absense of the negative feeling being sold as the existence of a good one.