Acne scarring after using Tretinoin in gel form? (Photo)

i just started using tretinoin 0,025 in gel form, 30% alcohol. after 1 week, medium sized acne start to come out after 2-4 days, like 80% of them turned into a big sized acne with pus, kinda hurt, and red. then after few days, the pus will dry out (i dont pick them, i just let them fall off naturally) yet they leave small hole scars (usually doesnt matter how big they are, BEFORE i use tretinoin, they almost never leave hole, just pinkish flesh and then healed up). i use cetaphil for face wash

No doctor answers yet