The same moist, warm, closed-off conditions causing the original rash also can lead to infection by bacteria or yeast. An infected rash can become a group of separate round spots with oozing, crusting, and surrounding redness and swelling. Diaper Rash American Academy of Family Physicians. Diaper Rash by Dr. Bill Crounse Diaper Rash by Dr. Bill Crounse Diaper Rash Children's Hospital Medical Center. It is an irritation that can cover the buttocks, upper thighs, stomach, and genitals.
Diaper rash occurs in most children at the ages between two months and two years.
W. Steven Pray, Ph.D., R.Ph. Authored by Amin Antoine Kazzi, MD, Associate Division Chief, Associate Professor, Department of Emergency Medicine, University of California at Irvine Medical Center.