Causes Treatment Should You Squeeze Blackheads? Treatments to Avoid Prevention Blackheads, also called open comedones , are a type of acne. They are flat and—unlike pimples—are not swollen or painful. They usually appear on the face, especially the nose, and are often so small you can't see them. Blocked pores cause blackheads.

A pimple in the nose often results from a blocked pore or ingrown nose hair. But, it can sometimes indicate a more severe condition, such as an infection. A pimple in the nose can be

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