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. Disclaimer: The information in this Health Library is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional with any questions about a medical condition or before starting any treatment. Use of this site and its content does not establish a doctor–patient relationship. In case of a medical emergency, call your local emergency number or visit the nearest emergency facility immediately.