Hello everyone! My daughter has diaper rash. At first I applied Sudocr…

Hello everyone! My daughter has diaper rash. At first I applied Sudocrem, it didn't help. In the pharmacy they gave me "Advantan" cream. I apply it once a day in a thin layer, but there is still no result. The pediatrician prescribed Synflan ointment, but it also didn't help. It's been almost a week now. How can it be treated?