A pimple or acne — a small inflamed spot on the skin, commonly occurring on the face or body.
思春期になるとにきびができやすくて困る。
In puberty I tend to get pimples and it's troublesome.
この化粧品はにきびに効くと評判だ。
This cosmetic is reputed to work on pimples.
無理に押すとにきび跡が残ることがあるから触らないで。
If you squeeze it, it can leave a scar, so don't touch the pimple.