Disposable diaper sales are decreasing by 1% and sales of diaper rash ointment has increased by 8%. This study by Consumer Edge Research did not include on-line sales or Costco and Sams, sales figures. Could this be a trend? Maybe cloth diapers are being considered and used. I am not sure what inflation has done to the cost of a diaper but my guess is the cost has remained steady. The total sales for the adult diaper market seems to be on the increase. Maybe everyone is getting used to diaper rash and wet diaper wearing for longer periods of time.