Hi, my 3 year old is having constipation problems. I ve tried adding more fiber to his diet as well as more fluids and less milk and dairy. It has not helped and he seems to have a red rash looking ring around his butthole. Desitin seems to help it but it is stays faintly. He also hasent eaten anything he has not had before so I don t believe it to be an allergy. He also seems to want to hold his poop on. Any suggestions with something more to help and what is the red ring?