Thank you for your query.
A slightly raised itchy lesion can be a fungal infection
. However a fungal infection will not go by its own as mentioned by you. I suggest that you apply calamine
lotion and observe. If there is no improvement then it shall be better to consult your doctor and, if required, start with an anti-fungal ointment.
I hope I have answered your query to your satisfaction.
Wishing your daughter an early recovery.
Rajiv K Khandelwal