I'm having a lot of trouble forgiving someone for something they did quite a little while ago. The repercussions of which I am still dealing with today. I feel a lot of anger and frustration when I think about what this person did, and it's very hard to ignore.
I have already spoken to this person, and told them how I feel about the situation - ultimately forgiving them, but it still troubles me internally.
What can I do to "purge" the thoughts from my mind and the negative connotations that come with them?
EDIT: I do not wish to forget what happened, only learn to better manage the emotions that are felt when recalling the incident.