Acne that appears on cheeks and jawlines is often a result of oil glands overreacting to your skins and bodies hormonal responses.
The acne that occurs on your cheeks and jawlines is caused by your skin's oil glands overreacting to hormonal responses, which can be triggered by factors such as stress, eating too much sugar or dairy, or the (perfectly normal) fluctuations that.
So the causes of the cheek and jawline acne can be because of several different things such as stress, changes in your diet or even clogged pores in your skin in those areas.
You can use some lemon juice or apple cider vinegar as a natural home remedy to treat acne on your cheeks and jawline or anywhere else.
I would also recommend using an exfoliating facial cleanser when you wash your face and the cheek and jawline.