It helps to know what can cause or worsen an outbreak of acne. According to the National Institutes of Health, these factors can make acne worse:

    * changes in hormone levels in adolescent girls and adult women 2 to 7 days before their menstrual period starts
    * oil from skin products (moisturizers or cosmetics) or grease encountered in the work environment (for example, a kitchen with fry vats)
    * pressure from sports helmets or equipment, backpacks, tight collars, or tight sports uniforms
    * environmental irritants, such as pollution and high humidity
    * squeezing or picking at blemishes
    * hard scrubbing of the skin
    * stress

Read the full article:  Facing Facts About Acne

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