>as I understood I need to dermaroll all marks in one day, and in the next four weeks cover the
>intensive treatment on individual marks for once. Yes. If you do not manage in four weeks, never mind. It is not important. When you finish, wait one week and start the entire cycle again.
I recommend you a 1.5 mm dermastamp with 35 needles.
You do not have to stamp every single line of stretch marks. Just do your best and stamp what you can.
You can also concentrate on just certain areas with a dermastamp and use just a dermaroller on the others.
Soon we will sell an electric needling device (Dermajet) with five adjustable needle lengths. This would make your treatments much easier and quicker and it is very suitable for those who have many stretch marks but it is quite expensive (249 dollars).
A manual dermastamp does exactly the same job but you are the power behind it (not electricity) so it takes longer.
>for areas that marks are spread out all over buttocks for example, how can I focus on each
>mark ndividually?
Yes, this is tricky. For the time being, use only your dermaroller.
Concerning your problems:
If you are currently stable in weight but you significantly fluctuated in weight in the recent past, it can be a result of that recent fluctuation. The fibers overstretched and it took some time to be noticeable on the surface.
Stretch marks often appear after oral or prolonged topical corticosteroid medication.
Cushing's syndrome (the body produces excess amounts of the hormone cortisol) and Marfan syndrome, both very rare, cause excessive stretch marks.
Canada has good public health care - you should go to your GP and tell him that your injuries do not heal as they used to and you developed many stretch marks without being pregnant or fluctuating in weight. If your insurance does not want to pay, get at least a cortisol level test and pay for it yourself because cortisol is both connected to excessive stretch marks and slowed down healing:
"Cortisol plays an important role in curtailing the healing process -- higher cortisol levels can lead to a slowdown in healing."https://http://researchnews.osu.edu/archive/ilwound.htm..and hopefully your GP will advice you on what to do more.
Good luck!