Hi..thanks for your query.
the pattern of acne in your face would be a pointer towards the hormonal
cause for acne.Few tests are important in acne of hormonal origin. the common hormonal tests done for this case are Serum Testosterone
,S.insulin,LH,FSH and cortisol
.There should be an abdominal USG done to rule out pelvic pathologies.
As for regular care of skin ,you should use a sensitive mild cleanser.Try to use a Retinoid
topically at night.
Orally you should have supplements containing Vit C and Vit E to reduce the free radical induced damage to body and prevent aging changes.You also should apply non comedogenic moisturizers containing Vit A and E in the morning.It is very important to avoid sun exposure and apply a broad spectrum sunscreen when you go out.Green tea is a good source of anti oxidants as well.So you can start having it.
Hope this helps.Take care.