How Can Sagging Breasts Be Treated?

hello mam my self pooja from kanpur my breast is so loose...my age is 24 (unmarried). can u suggest me any medicine....one think i want to tell u this is important,that i have addopted a 1child of 3 month before 2 one year and i did use the medicines suggested by a doctor for comming original milk...after then i im lossing my tightness and today my breast is totally loosed...please help me mam.