ALERT: period acne attack >,<

It's the week before my period and the acne is attacking my face [actually half of my face] they are all gathered on the right side of my face >,< soo am looking for a good solution, i heard alot about the tea tree benefits soo today i went to the body shop [not a big fan of it but it is everywhere -_-] soo i thought to give it a try... so let me try it for a week and i'll let you know! but if you have other better solution for ance PLZ let me know ?