First of all answer me some leading questions -
1. Is there any trauma which you have gone through before back ache started ?
2. The cyst you are talking about is hard, painful or any bleeding or pus oozing out from it ?
3. Do you have any Past history of TB or any past family history related to TB ?
For the time being do these things -
1. Temp monitoring every 4 hourly.
2. Tab Pcm 650mg sos ( whenever temp > 100°F )
3. Tab emset 4mg two times a day for 3 days.
4. Tab pantocid 40mg one time a day for 3 days.
5. Tab neurobion forte one times a day for 10 days.
Revert me back with your answers to the question i asked.