Hi Alisia,
Are you in the Denver area? I'm 24 and have a large PWS that was treated when I was a child but never fully removed. I just had an appointment with Dr. Eubanks at the Dermatology & Laser Center (at Harvard Park). He says he's been treating PWS marks since 1989 and was very knowledgeable about them- I'm going to begin treatments there next week! You might want to give the office he works at a call if you're still looking for other opinions.
www.DLCderm.com.