Before you choose a treatment, it is essential that you know what scarring you are dealing with, as some treatments will only work for certain types of scars. You should always consult with a dermatologist before pursuing any treatment. The main scar categories include:   Keloid scars: these are large, growth-like scars that result from a wound that heals itself too aggressively. Keloid scars may grow larger over time and sometimes even return after treatment. They are particularly common in people with darker skin tones.  Hypertrophic scars: these are raised scars which are initially red or pink. They will fade on their own over time. These scars may be the result of burns or surgery and can be itchy.  Atrophic scars: these scars are the deep pits that are left behind after severe acne or chicken pox.  Stretch marks: these are thin, reddish-purple scars which happen because of rapid weight gain or loss. They are particularly common in pregnant women. Over time, these scars will fade and become white-ish.  Contracture scars: these scars are usually caused by severe burns and may cover a large area of skin. These scars may feel tight, especially if they are around the joints, and can potentially limit body movement.  Dark spots: these types of marks are not actually scars, but a type of post-inflammatory hyperpigmentation, usually caused by mosquito or other insect bites. You should begin treating your scar - with a suitable cream or other treatment - as soon as the wound has completely healed. Most scar treatments will be much more effective on newer scars than on old ones, thus saving you time and money down the road. Most scars will eventually disappear on their own as skin rejuvenates itself - shedding old layers of skin and growing new ones. You can help this process along by exfoliating your skin regularly in the shower, using a body scrub or a bristled brush. Avoid exfoliating over fresh scars or healing wounds. Aggressive scrubbing can slow the healing process, or even make fresh scars worse. This is...

TL;DR in Vietnamese:
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