Though the size of breast depends on various factors like genetics , body mass and proportion, fat contents and physical activity etc. and hence It Is multifactorial . Similarly treatment or brest reduction or sagging breast reduction also depends on the various factor. Some of Hormonal therapy may be advantageous.There are oils which needs to be massaged on alternate day , and medicine to be taken will tighten the sagging or loose skin . Surgery can be the last option if not improve with medicine.

Surgical consultation.

Surgical resection of the cyst is a better management

So many claims for reduce in size but nt satisfactory  , avoid overstimulation  and wear perfect size  & good quality bra