What should I do, girls?

What should I do, girls? We have 5 days, the umbilical cord under the sticker started smelling and there's pus visible, in the maternity ward they didn't treat anything, like it's a new rule, at discharge the pediatrician said DON'T TOUCH, now the district doctor examined and says smear with peroxide and green, she says that smell and pus is normal! Well, how so?? Didn't prescribe any ointment or antibiotics, I asked to send to the surgeon, she says you haven't seen worse diaper rash, you're fine. How about you girls? Please tell me what ointments to put on the diaper without a doctor's prescription