To comb the hair without difficulty means friendship, gain of lawsuit. With difficulty, labor and loss.

To dream of a comb is unfortunate indeed. And to comb your hair, I your future sorrow read.

…room, when, something making me suddenly look up at him, I perceived a curious glitter in his eyes — a glitter that made my blood run cold. Presently, he made the most frightful grimace, baring his teeth, bulging out his eyes and frowning, and then all his features contorted as if they were India-rubber, and I saw something too evil and repulsive for words. With a shriek of terror I sprang up and made a rush for the door, and as I did so he gave a loud chuckle and bounded after me, crying out:”I’m mad! I’m mad! Say your prayers, I’m going to chop you to pieces! I awoke in a dreadful fright, just as he caught me by the hair and was going to kill me. Within a week, I heard that he had softening of the brain and had to be confined in a private home.”…

If you are dyeing your hair in a dream, then such dream indicates the magnificent changes you are trying to make within your personality or your image. If you were dyeing some garment like clothing, then such dream represents the bad or good luck in contingence of the color. To get more detailed ream interpretation, please see the meaning of different Colors meaning.