See
article which Sarah Vaughter refers to in her reply. I shall be interested to hear if you try the suction treatment and if it works for you. I'll post any follow-up comments about my own case here too (if that's OK by you!), as it seems sensible to amalgamate the two threads. I think we should report our results here, as there is so little useful information about treatment for shingles scars on the web. Most medical sites say that shingles lesions don't leave scars. This is utter nonsense. They definitely do, especially on the face, even if one has taken the greatest care not to touch or scratch the scabs. Scarring depends on the severity/depth of the infection.
I am using a dermastamp in conjunction with the suction technique described in the article. My suction tool is the kind of vacuum pump that sucks the air out of wine bottles! I tried syringes but they were too small and not powerful enough. The wine-bottle air sucker is just perfect. My indented scars are very similar to yours. (I have two large ones, left from shingles that I had in October 2011.) I have only started this combined treatment about three weeks ago, but my impression is that I can see a tiny difference already (measurable in microns rather than millimetres!). I am hopeful that it will work eventually but will take a long time. I only use the dermastamp once every three weeks, as advised on this site, and I am suctioning every day from the third day following dermastamping.
In your case, it is very early days, and at five weeks, you can't expect much change yet. My scars are now six months old, and although they are no longer red (except immediately after dermastamping) they are still almost as deeply indented as they were to start with, despite using scar gel, scar plasters, and massage. The suctioning has definitely raised them by a tiny amount.