The morning-after pills contain progesterone like hormones in higher doses that the regular birth control pills. These hormones have androgenic (testosterone like effects), that can trigger a break out in people with acne prone skin. Morning after pill acne breakouts start quick and may linger for a few weeks to months after the morning after pill is used. Effective anti-acne treatment should be started to control the acne breakouts. Treatment should be based on skin type and acne severity and will usually contain high quality benzoyl peroxide lotion and suitable acne specific morning cleansers and moisturizers.