Just found you on web , So sorry to see that you have suffered an adverse reaction to Diode.
I hope this information will help . You may already have some Hyperpigmentation (loss of skin colour) even after six month?
It is clear to me that IPl Alma Harmony would not be suitable, assuming the facial hair to be fine? A Diode would be a natural choice, the problem you seem to have is that who so ever used the Diode was not experienced enough to understand your skin type, Even though your skin type is Persian and pale (4/5 to a laser technician)it still should be treated as dark, due to the pigment within being much darker. This is why you have had the reaction. Post treatemnt you should have had some advise as to how this marking could be dealt with to avoide future scarring, I hope this was the case?
As for future treatment, if it IS fine hair a Diode is the right machine for the job, however you must ensure that the laser technician is experienced and understands not only your skin type but the machine in hand and its correct energy protocaol to treat Persian skin.