Girls, has anyone from your little ones had toxic erythema? It started…

Girls, has anyone from your little ones had toxic erythema? It started in our maternity ward and still hasn't gone away (it's been driving me crazy???). The pediatrician says it's normal, maybe it will fade by 3 months, but everywhere online it says that it shouldn't last longer than 3 weeks. ?‍♀️ If anyone has had it, please share your experience.