Need y’all’s help

My baby has been using cloth diapering for the past couple months an he’s been getting diaper rashes off an on I’ve done the extra rinse cycle used a few different detergents but he’s still getting them today it’s been soooooo bad I just ordered another detergent which is my last resort to hopefully help have u had this issue an how did u fix it with your little one I had him on the original tide a could different free an clear detergents he is super sensitive to a lot of things an has been since he’s been born so hoping maybe this detergent will help an that’s the issue I change his diaper normally every hour to two hours unless he’s sleeping at night down below is the detergent I got for him but doesn’t come in till Sunday has anyone else had any issues with this detergent