We've been doing some cloth and some disposables with DS since he was born. We use unbleached Indian prefolds. I've been washing them in homemade detergent (washing soda, borax, and Ivory soap) until recently, when I switched to Rockin' Green.
The problem: In the past couple of weeks, DS has started having redness on his penis and scrotum while in cloth diapers. And he screams if his diaper is wet. At first it was just a little redness on the tip of his penis (he's not circ'd, if that matters). I put Angel Baby Bottom Balm on it, but it didn't really improve until we put him in disposables. (We used some Butt Paste, too.) Put him back in cloth. The rash came back, except it went in a line along the whole top of his penis, and then in a line down the middle of his scrotum. Again, screaming with wet diapers. Tried just using the bottom balm, but it didn't help much. Put him back in disposables, and it cleared up. I thought maybe it was the new detergent, so I washed his diapers in the old stuff, with an extra rinse, and split the detergent between the cold wash and hot wash. No dice. Two cloth diapers later, the rash was coming back. I'm afraid to put him back in the cloth now.
Any ideas what this is? Should I strip my diapers? Bleach them? Try some other detergent? Something else? He needs bigger diapers, but I'm afraid to buy any in case we can't solve this issue.