Thank you for your query. I am sorry for responding so late to your query.
I hope by now some cause for the pain must have been found and your daughter is better.
I would suggest that a repeat MRI
after a gap of about 6-8 weeks would let us know the status of the cyst
and both the neurologist
and ENT specialist
should work out a course of action for the issues.
I hope I have answered your query to your satisfaction.
Wishing your daughter all the best.