While acne can develop in almost any age group, from those in their 20s to those in their 50s, this common skin condition is most prevalent in teenagers: by mid-adolescence, more than 40% of teens will report either acne or acne scarring. However, dermatologists are now reporting that the condition can also develop in pre-teen children. Fortunately, the American Academy of Pediatrics (AAP) recently released guidelines to help dermatologist clinics and parents treat acne even in the youngest patients. Childhood acne is believed to occur due to a trend in which both boys and girls are beginning puberty earlier than …