Four denotes stability, physical limitations, hard labor and earthly things, as in the four corners of the earth or the four elements (earth, wind, fire and water). It also stands for materialistic matters and how you get things done. Alternatively, the dream may be a pun on being "for" a position. In Asian cultures, the number four is a metaphor for death.
The number 4 in a dream represents balance, stability, and sacrifice of negativity. When you see it in a dream it's usually pointing to something negative in your life that is being removed. A removal of chaos or unpredictability.
The reason 4 represents balance is because like the legs of a chair you need four of them to stay balanced or secure.
Example: A man dreamed of being given $400 dollars. In waking life a vitamin supplement was recommended to him that helped him stabilize a serious health condition.
Dreaming of a boil running pus and blood, you will have unpleasant things to meet in your immediate future. May be that the insincerity of friends will cause you great inconvenience. Dreaming of boils on your forehead, is significant of the sickness of some one near you.