It is possible that the rash in the groin area is caused by irritation from moisture and friction from the diaper. The first step is to let the child go without a diaper as much as possible. You can also try applying a 0.5% hydrocortisone cream to the affected area twice a day to reduce redness and itching. If the rash worsens with the cream, it is advisable to seek medical advice promptly.
