‼️‼️‼️‼️PLEASE HELP‼️‼️‼️‼️‼️‼️‼️

So I notice todag that my LO has a horrible diaper rash, it looks like skin peeling and some part of it was bleeding. I change her diaper every 2-3 hours or as much as needed. I use the blue desitin, but I don’t see it helping. I don’t know if I should be concerned or just keep putting rash cream on it & keep changing diapers and see what happens... I also use Huggies snug & dry diapers and organic Huggie wipes. I’ve been using both since she was 1 month, she’s now 5 and rarely got rashes, but when she does, it has never been too bad of a rash that she bleeds and usually if she does get them they go away within a day or two. I’m honestly so heartbroken that she got it so bad.. she’s not crying or doesn’t seem like it’s a discomfort to her, but I feel like a horrible mom because I let this happen to her 💔💔 Any advice, input, or recommendation is helpful!! TIA

Edit: Thank you all for the response!! I feel so embarrassed and ashame that I didn’t notice she was getting a rash or that I let this happen to her 💔 I will call her pediatrician to see what they can give me.