Hello, I understand your concern
This is likely irritant contact dermatitis or diaper dermatitis, aggravated by: Prolonged overnight diaper use, Ammonia exposure from urine, Friction or moisture, Possible reaction to soap, wipes, or detergents
Next Steps
Stop diaper use at night temporarily if possible; use cotton underwear.
Clean the area with plain lukewarm water; avoid soap or wet wipes.
Pat dry gently—do not rub the area.
Apply a barrier cream like: Zinc oxide cream (e.g., Sudocrem, Desitin) or Petroleum jelly (e.g., Vaseline) before sleep.
Continue Fexofenadine for itching.
If redness is significant or the child scratches frequently: Mild topical steroid like 1% Hydrocortisone ointment can be applied once or twice daily for 3–5 days under supervision.
If there are signs of secondary infection (pus, foul smell, swelling), consult doctor for possible topical antibiotic.
Avoid diapers whenever possible, especially during the day.
Change diapers immediately after urination or stool.
Avoid scented soaps, bubble baths, or antiseptics in the genital area.
Ensure good fluid intake to dilute the urine.
Health Tips
Red flags:
If symptoms worsen or persist beyond 5–7 days
If there is painful urination, swelling, or discharge
If itching disrupts sleep or causes behavioral changes