If you are getting a tingly or scratchy sensation, then you are eating it unripe. I know it may sound weird to some and be a pain in the a$$, but you should only eat the portions of flesh where the outer covering (green "octaginal" shaped pieces thatcover the flesh) falls off on its own. If you have to use any force at all to remove those sections, than its not truly ready and will most likely cause that sensation.