there are many.... i have myself worked and handled similar cases since 2007 and have worked with almost all the big guns in town..
keeping everything in mind i would recommend the following (in order of preference)
1) Dr Aftab Mohsin
2) Dr Arif Nadeem
3) Dr Ghias -un-Nabi tayyab
there are many others like Dr Shahid, Dr Arif siddiqui/Qayum, Dr Zafar etc etc but none of them come close.
If you or any of your friends/relatives are the patients then there is reason to be hopefull now.. Solvadi was approved by DRA just 2 weeks ago. the price fixed is Rs 1940/-per tablet... read about it or search the internet for details but one thing is sure that the treatment cost or the initial cost will be high with it but the duration of treatment will be with minimal side effects and with better end results... it is a game changer