First things first. There is no doubt about the diagnosis, she has spinal TB.
As in any infection, primary treatment is always antibiotics.
Surgery is only necessary in 2 conditions -
1. Fracture or abnormal bending of the spine where the weak spine has to be supported.
2. If there is weekness in lower limbs or difficulty in passing urine due to the infection causing nerve compression /damage.
Next Steps
Monitor her blood reports. CBC/ESR,
LFT. Continue her antibiotics course(minimum 6months), bed rest for initial 2months.
Health Tips
Regular follow up with your primary doctor to monitor her recovery.
If she starts complaining of difficulty in passing urine or weakness / numbness in legs, immediately consult your doctor.