No Results After DOT Therapy

I have had SmartXide DOT Therapy on 1/22/09 and 3/10/09. My target areas were the lines around my lips. I was never a smoker so I don't understand where they came from, although one doctor said it is from muscle contractions.

I have spent a lot of money on trying to improve this area, and I feel like I have not seen any improvement. I am so self-conscious about it so it hinders me from doing alot of things. Actually, I am very depressed about it. I am so frustrated! Should I still expect results soon? Any advice would be appreciated. Thanks.