development of blackheads or whiteheads, the former appearing on the face and the latter on the back of the neck, cheeks and chest. This skin blemish is also known as a zit and although there are no serious medical conditions attached to it, the acne skin condition itself is a bad one....
on your face. Working out makes you sweat, but if you are wearing makeup or lotion that seals your skin your pores will not be in a position to breathe. The sweat will combine with the components in your make-up or lotion and additional clog your pores, creating extra blackheads. ...