Try writing them down in a journal as soon as you wake up. Than you can read back on them later on that day and try to figure out what it means. I don't study dreams or anything but I believe every dream has a logic behind it. Something were not facing or hiding, some type of metaphor. Not sure if this interests you or not, but dreams are rather interesting in my opinion. Nightmares are terrifying though I understand that, but it'll help you figure out why you're having these dreams.
"Healing takes courage, and we all have courage, even if we have to dig a little to find it."