Acne Home A-Z Health Information Health Library A-Z Acne Overview Acne is a prevalent skin condition characterized by clogging of hair follicles with oil and dead skin cells, resulting in the formation of pimples, blackheads, and whiteheads. Types Comedonal acne: These are marked by blackheads and whiteheads.Inflammatory acne: These are marked by papules, pustules, nodules, and cysts. Symptoms PimplesRednessSwellingSometimes pain Causes Hormonal changesExcess oil productionBacterial infectionGenetics Diagnosis Physical examination and medical history. Treatment Topical treatments (retinoids, benzoyl peroxide), oral medications (antibiotics, isotretinoin), and other procedures including chemical peels, laser therapy (Harmony XL Pro), and PRP therapy, based on the severity of the symptoms.