Thank you for your query on Healthcare Magic.
Is child having loose stools?
For diaper rash
, change the diapers frequently and allow the area to dry.
You can apply a zinc oxide
containing cream externally over the rash for skin protection.
But with your description it may be due to fungal infection
like candida, which requires an antifungal cream local application.
Consult the doctor for physical examination and for prescription of medication.
Hope I have answered your query.