What could his be???

I've been putting nystatin powder and cream on it, washing with warm water and putting desitin through the night. Could it be something other than a yeast infection? Could it be perinatal strep. I already went to the urgent care and a doctor for this so I'm just asking for other moms opinions. I'm already doing what I was instructed to do. Its just not getting better. The top is yesterday. Bottom is today

Update!!!!

They are numbered by days after I went to the urgent care

UPDATE #2

it's gone everyone 🤗