Hi,
Hope you are feeling better.
The recovery time for brain tumor surgery depend son many factors like the size of the tumor, the general condition of the patient and location of the tumor.
I would suggest you to take it easy for sometime. Just relax and make sure you get good nutrition. If your symptoms still do not subside please check with your operating doctor.
nerves once damaged take time to heal. it depends on person to person and age. months, may be years. in young age healing is faster. its hard to predict. but one thing can be pedicted that is, everything will surely be normal. good nutrition is essential. proper follow up. please do strictly ensure intake of medication prescribed by her doctor.