I'm thinking about revisiting an old project of mine that's always given me trouble, thinking that I can finish it this time since I've grown as a writer since I last tried to work on it. The thing that's really kept me from working on it the way I could have is that it touches on things (relationships between characters, character actions, etc) that make me really uncomfortable, to the point that it inhibits my ability to write. Are there any good methods to overcome or work around that feeling of discomfort?
Edit: It isn't really discomfort with taboo, explicit or painful actions or subjects, since I have no trouble coming up with these things and getting a sense for them in my head. It's more a feeling of discomfort with the extent to which these things need to be explored within the story- like doing that would make me complicit. Tips for dealing with any sort of discomfort would be great though.