Thank you for your query.Do not panic.
Cafe au lait spots cannot be cured with medicines.If they r disfiguring plastic surgery
can be done.
On the other hand yeast infection can be treated with miconazole
creams.However yeast infections
do not look like cafe au lait spots!!
If you have any further queries you are free to consult me.
Hope this answers your query.
Wishing your child a speedy recovery.
Have a nice day.