Hi there, my daughter also has an H on her cheek. She was on propanolol for about 6 months (from 2-8 months of age) and we recently weaned her off. She's also had 4 laser treatments and will be having surgery next month. Unfortunately I don't know anyone in your area but I would definitely try to talk to someone else and get another opinion. We were told that it is better to do surgery when they are younger (6-12 months of age) to aid in the healing process and also before they can really recognize their reflection and that they look different. Maybe you could email one of the experts through this site.
Best of luck to you!