Carson has never before experienced diaper rash. A little red here and there but nothing serious. Not sure if was the teething or the mandarin oranges but our poor little guy developed the most extreme case of diaper rash ever! It looked like someone had held a torch to his tushie! He screamed in pain and we had to use cotton balls soaked in water to clean him off. We tried to let him air out as much as possible! Of course when I finally broke down and called the doctor, it got better the morning of the appointment!