Microneedling of raised scars

[GiXxXx]

    This is really fortunate for me to have viewed this forum by chance! And the information is absolutely very inspirational and gives me some hope of curing my long-lasted scars. I have noticed that we should try to find the information in this forum before coming to ask, and I have tried so, but I hope that I can still have some questions to find what suits me most. Hope you can understand.

As like in the pictures I have attached, I have those irritating hypertrophic  scars for about 1.5 years, and I would like to know:
1. what devices should I purchase(like 1 mm 'derma stamp'? 

2. Any other creams and gels I should apply together with the needling?

3.I heard that if got metal allergy, then needling would not be proper, is that true?

4.How does it compared with fractional CO2 later?

Thanks a lot, and I'll purchase the device from your company soon after I get the reply.

[SarahVaughter]

Could you tell me how did you got those scars?

For the time being, read the below link and I will add to it after you have answered me:

https://http://forums.owndoc.com/dermarolling-microneedling/what-to-do-about-hypertrophic-scars/

[GiXxXx]

  Actually I was told that they are pimple scars and indeed they are formed around the area where pimples grow.

And the doctor told me my body has the tendency to form scars

thank you.

[GiXxXx]

Btw, it appears all red is because I still have some pimples and inflammation there.

There are around 8 scars there.

[SarahVaughter]

Prior to stamping, try to clear your skin of acne (or at least partially) with our 0.5% Tretinoin cream. Initially, Tretinoin may make acne worse
before it gets better. Apply it every second day for several weeks. It will make the skin red and maybe peeling.

I was afraid you have a tendency for getting scars because normally, acne should not result in such raised scars. That is why you have to be very careful with rolling/stamping and you must do a test on a small area of your skin to see how it reacts.

Do you get scars easily also elsewhere?

First, try the dermastmp somewhere on your body (for example on a thigh) to see if it heals OK. Then try it somewhere on your face. Then stamp one of the scars just once and observe, whether it heals OK.  Gradually add more stampings into the scars, when the previous session went OK.

Immediately after stamping, perform the pressure massage (explained in the link I have posted here) and apply Tretinoin cream (it will likely sting).

When you stamp the scars, pull the skin upwards (away from your neck), it will make it much easier to stamp.

Buy a 1 mm dermastamp.

Concerning the allergy, you have to try. The contact with the skin is very short with stamping. Allergies are more of a problem with long term contact, such as wearing a ring, watches, earrings etc.

There is some nickel (the most common allergen) in stainless steel but it is tightly bonded so it doesn't get loose as it does in some golden jewelry.

Your question number 4 is answered here:

https://http://owndoc.com/dermarolling/how-dermarolling-works/