Yes, It is possible for the scars to look slightly "wider" after TCA cross and other acne scar treatments. The appearance of 'wider' scars might be because of collagen remodelling and skin tightening of the surrounding normal skin. This stretches the scar and makes the scar look wider but shallower.
In general, your acne scars should look shallower after several treatments.
I suggest that you speak to your acne scar doctor to review before/after photos of your skin for a detailed understanding of how your scars have evolved after the series of acne scar treatments.
Hope that this helps!
Warmest regards,
Dr Justin Boey
