It’s the world’s most common skin disease. Affecting men and women of all ages, acne can be found on the face, neck, back, chest and shoulders. Yet, frustratingly there is no cure for acne, which according to the Australasian College of Dermatologists, will affect 85 per cent of Australians at some time during their lives. The key to controlling acne lies in deciphering its cause and treating it appropriately.