I had my lower beard treated and it made even worse (4 weeks post) - advice appreciated.

I have always had mild pseudofolliculitis barbae (redness around hair follicles in my beard - especially after shaving).  I finally decided to get it treated with a laser so that the hair would stop irritating the skin.  Well, four weeks have gone by since my first treatment and I am more red than I ever was before (my back hair was treated too - and this is fine).  Now, hairs are starting to grow back and it looks really bad (on top of the redness) - I have a very thick beard and you can see the patchy hair coming in. My questions are:  (1) Is this hair loss permanent (after one treatment? It would really surprise me - I had 8 on my back and still have hair - Yag laser though). (2) For the redness, I am putting on betamethasone, but it is not helping much.  Are these burns possibly permanent?  (3)  If I just stop treatments now - will all of the hair grow back?  I think that would be the best thing to do.   Why is the hair not growing back at all - 4 weeks later?  The laser used as the lightsheer duet diode laser by lumenis.