The above problem can be treated easily with adequate psycho education, and systemic desensitization technique .

It seems you are talking about nightmares wherein you see dead people. Howsoever, more details would be required such as the duration & frequency of these, if the dead people you see in your dreams are close family members or strangers, if they are actually dead or alive in reality, also if you have such mental images in awake state etc. You need to see a psychiatrist for a thorough & detailed evaluation before a complete diagnosis can be made. But medication & counseling shall surely help you, so seek a personal visit soon.