Acne occurs when hair follicles clog up. Numerous factors can contribute to acne on the jawline, including genetics, certain conditions, and some medications.

You may be able to treat jawline acne with over-the-counter medications. However, for more severe cases, your doctor may prescribe medication. Depending on the type of treatment and severity of the acne, it can take several weeks to notice an improvement.Other contributory factors include:Hormonal changes: Pregnancy, menstruation, and the use of birth control pills can cause hormonal changes. These changes can lead to acne formation.Shaving: Excessive shaving may irritate sensitive skin. Old or dirty razors may also introduce bacteria onto the skin surface and cause acne breakouts. Face beauty products: Oil-basedface cosmetics may clog the pores and contribute to breakouts.Diet: Foods with a high glycemic index may make acne more severe. Examples of these foods include sugary drinks, starchy foods, and highly processed foods.Stress: Stress hormones may stimulate the oil glands to produce more oil. This may consequently cause acne flares.