Of your menses are regular, there is no need of any medication. (ultrasound
finding of PCOS
& serum LH more than FSH: Does not require any treatment). Only thing you should remember is to eat healthy, exercise regularly & avoid putting on weight. It will help to reduce risk of diabetes
for you. If your menses are irregular, you can take pills/progesterone
to regularize it till marriage.
Wish you good health.