My wife is very hot tempered and she like to hit me when she lose her temper. She will dig her fingernail into my skin and sometimes she will slam my head against the wall. I don't want to hit her back. I love her. I believe she loves me too. How can I calm her down. And stop her from abusing me like this.

U need to talk to her closest family member to talk to her abt this or i dont think u asking her to go see a doc will help as she will rebuke and flare up in temper again. U need to share with someone close to her to talk to her and find out why is she acting like this. There must be a root cause to her temper or action.