Hi I think there's no way you can reduce your breast size naturally. I agree with the suggestion of cosmetic surgery, that would the only way. If you really have problem with the size of your breast then you must undergo surgery since you may suffer back and neck pain due to the large amount of weight that causes strain on the muscles. Here you may read this article about Breast Reduction - http://www.placidway.com/subtreatment-detail/treatment,5,subtreatment,27.html/Breast-Reduction-Treatment-Abroad