Acne comes in different forms, including comedonal acne, inflammatory acne, and cystic acne.  Comedonal acne appears as tiny flesh-colored bumps on the chin, nose, and forehead, resulting from clogged pores with excess sebum and dead skin cells. No bacteria is involved, and it is one of the easiest forms to treat. Inflammatory acne often presents as red, swollen breakouts that may contain pus due to clogged pores and Propionibacterium acnes bacteria. This form of acne triggers inflammation as the body tries to fight the bacteria, and severe cases may result in nodules and cysts. Hormonal imbalance mainly causes inflammatory acne and less commonly, medication or chemical use. Lastly, cystic acne is the most aggressive type and requires early intervention and aggressive treatment as it may lead to permanent scars. It is often caused by hormonal changes and requires prescription medication.