My DS (4) has just cone back from a weekend at his dads. He complained in the car on the way home that his bottom is sore. On looking at home, it is bright red all around his anus, didn't look dirty though. I've put a bit of canesten on in case it is fungal, along with sudocreme to try to soothe it. He's been on antibiotics for chest infection since Friday. Could it be connected? Or any other thoughts or suggestions to help?! Thanks!