Thank you for your query.
She suffered from a viral gastroenteritis
.She should recover soon.Give her a probiotic
syrup along with a zinc suspension.
Avoid juices,fruits ,milk and wheat products.
Apply egg white on the raw red area thrice daily.
Consult your doctor if the problem persists.
If you have any further queries you are free to consult me.
Hope this answers your query.
Wishing a speedy recovery.
Have a nice day.