To dream of a blackhead represents embarrassing feelings about yourself that you hope nobody else notices. Embarrassing things about yourself that you prefer to deal with privately hoping no attention will be drawn to it.
Dreams about blackheads may appear when you are insecure about some area of your life being looked at too closely or made fun if someone sees it. Feeling annoyed that you can’t stop caring about what other people think if attention is drawn to something you are insecure about.
Example: A young man dreamed of seeing a woman with her nose filled with blackheads. In waking life he went broke and had to rebuild a new business. He hoped nobody he knew in the past who experienced him being rich would learn of his new found need to start over financially. He was embarrassed by his poverty and hoped to rebuild without anyone from his past seeing it.
Example 2: A young man dreamed of seeing a nose with blackheads. In waking life he was realizing that every time he purchased something from a controversial company that he was always insecure about other people noticing him being associated with that company if they ever noticed the logo.