Dreaming of cystic acne is a bad sign as per dream meaning and interpretation. The dream means unwanted fear and lack of courage will result in you loosing good opportunities. It is also a sign that you are giving too much important to trivial things while ignoring important matters.
Dream of cystic acne on you means embarrassment. You will be victimized or might face public shame. It also means accident due to careless activity.
Dream of cystic acne on someone else means you will be scared to take decisions at the right time. It also means you will be scared to do things normally after witnessing something untoward.