how can i small in shape and size my large and hanging breast my age27,ht 5ft,wt 49kg,2yrs child,c/s

i have one 2yers old child.still now she taken breast feed. my breast are become very large and un shape and hanhing.which is not before
now i want to small in shap and size as befor my pregnancy, my hight-5ft,wight-49kgs,age-27years.
so whate can i do please suggest me.[/list]