Can a psychologist help with nightmares?

I have nightmares at least once a week. They are always about somebody chasing me, usually strangers but yesterday my dad and brother were stabbing me and my mom with swords in my nightmare. The nightmares are always very graphic and gruesome. Once my brother was peeling my skin with a potato peeler. Can a psychologist help me figure out why I have these nightmares and help me stop them?