I am from India. My name is Isha Deshpande. I have had PWS since birth on left side of my face. Back then when I was born, there weren't any treatments available in India. But now many treatments from laser to corrective surgeries are available. I had few laser sessions and couple of surgeries at Pandit's Clinic.
Dr. Shrirang Pandit is a plastic surgeon and they also specialize in many laser treatments. Maybe you can approach them.
See this :- http://www.panditclinic.com/about-us.php
You can take my word, Dr. Pandit is a really good plastic surgeon.
Here is their contact number :- +91- 20- 25534849
Let me know if you have any other queries.