What could be the problem with my upper lip diode laser treatment? (Photo)

Had an upper lip diode laser treatment. 10x to be exact. But still hair are still growing and still thick on the side of my mouth. Based on the leaflets. Hair removal on face usually is 8-10 sessions. But I had 10 sessions of upper lip diode treatment. But on the next day there are still a lot of hair still growing. What could be the problem? Is it bad that after laser treatment I usually shave the area after a day. Because i cant go to work with this look. I need to be neat all the time because I'm a health professional