I cloth diapered Marissa since she was 1 until she was potty trained and Madalyn since she was born and I have never had an issue till now. I'm at my witts end and close to switching to sposies again. Marissa is still in diapers at night and her and Madalyn both have a nasty rash that looks identical. Well I started using Vinegar in my washes since they were a little stinky, and then it dawned on me that we are pretty sure both girls are allergic to Vinegar so we stopped using that and went back to normal washes hoping that would change their butts. Didn't help. I stripped the diapers, ran a full load of laundry with no soap and an extra rinse, both on hot to get out anything residue that might have been on them, didn't help. If I put Madalyn in disposables for a couple days she clears right up. So it has to be the diapers. I don't know what to do, any tips? We are and have always used All Free and Clear, tried switching to Tide and didn't help any. We use fitteds if that matters. Please help me!