first of all may ALLAH give u courage to fight with the hard time u are suffering secondly dont worry TB has a cure , my mother suffering with the same , u need to take care of his diet specially as he wont like to eat but u need to force him and make sure he will eat some thing every after 2 hours , give him fresh juice , the best TB surgeon i can find so far is HASSAN SHAH and hes in Ujha hospital thats in mosamyat and the best for TB patient , i have been doing all this effort for my mother aswell so Inshallah GOD will help u and your father will get better soon , let me know if u need any other information about treatment .
regards .