Cystic Acne is a worst form of acne. This type of acne is painful. It normally occurs on the arms, legs, upper body, face, or neck. They are very common among teenagers and adults. They are pus filled and cause a deeper and harmful infection. Those suffering from cystic acne should immediately visit a dermatologist for treatment. Some type of cystic acne treatments may leave scars on the body. There are many types of treatment one can choose from depending on the symptoms and severity of the acne. Some kinds of medications are very helpful in fighting against the infection and removal of the cysts.