While it’s not impossible that materials in the diaper or another product could be causing the rash, scientific studies have not shown that certain types of diapers are more likely to cause diaper dermatitis than others. If you notice that your child develops a rash when using a new type of diaper, cleaning product, or topical treatment, it makes sense to stop using it and discuss this with your provider. Most diaper rashes clear up within 3-5 days of treatment. If it’s an ongoing problem despite treatment, discuss with your provider whether your child should be evaluated for allergies or other symptoms. REASONS TO SEEK EMERGENCY CARE