Is it normal for red vascular marks to fade in and out after V Beam?

Hi I have had 2 v beam treatments space 5 weeks apart. I had my first one 9 weeks ago. I am getting a red vascular scar treated. The redness fades in and out significantly. One minute the mark will be so red and angry and then next 3 days barely noticeable. I am so over it. I don't know what to do. Is it just not working for me? or is this a part of the healing process. I think its working and then BAM redder than it was initially. My treatments were done with no bruising. Please help me. Thank you