Thank you for your question.
I am Dr. Su S. and I will try my best to help you.
Melatonin has been used in kids with chronic sleep disturbances.
Like any medicine, it can have side effects but is usually well tolerated.
In most studies, no side effects have been reported.
There can be headache
, excessive sleepiness, transient depression.
But this has been reported with larger doses like doses more than 8mg/ day.
It needs to be used with caution in those with seizure disorders, autoimmune diseases.
However, you can try a few other measures.
She can exercise daily for about 30 minutes.
This helps to sleep better.
You can continue to give her warm milk before going to bed.
Small snack before bed would also help.
So if it is needed, it can be used.
I hope this answers your query.
If there’s anything else I can do or if you have any further query, please let me know.
Wish her healthy life.