Using EFT initially doesn't solve the problem. Instead, it helps you to get straight emotionally first. When you can be more neutral, both parties can confront and negotiate the truths of the situation more evenly. The urge to criticise and blame comes from deeply-felt ideas about the world and how it should be. As such, the hurt feelings are your own, and are triggered off by others not caused.
Criticism can t work because of the world of hurt feelings that it stirs up in both participants.
The price for being a critic is often the appreciation, acceptance and friendship inherent in a good relationship. Here s how I would use EFT personally, both for the criticiser and criticisee. I use a light touch with the affirmations because I find this helps. Make these personal for your situation. I m going to do the best I can.