Here are some home remedies you can try to help lighten the appearance of the stretchmarks: http://www.livestrong.com/article/218179-home-remedy-for-stretch-marks-on-the-breasts/
There are four methods listed in the article. The four one seemed to be the simplest if you are short of time. And the first one sounds relaxing and could also be a great 20mins of me-time for you.
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