After 1 month hip tb treatment, my evening fever is less frequent but still comes back whenever my hip hurts.is this really tb??

TB osteomyelitis: You need to be fully reevaluated. It is entirely possible that the active condition has not been fully eradicated. Best wishes.

Too short a time: Not sure that a 1 month course of antibiotics is sufficient for bone TB. Assuming it was TB - proven by culture done by bone aspirate - the usual treatment length is 6 months to 1 year. Bone TB is NOT contagious and your doctor can follow the erythrocyte sedimentation rate (ESR) to monitor your response. Good luck