Can this scar from laser surgery be removed? (Photo)

Since this scar is well over three months old, it is considered a mature scar and, as such, completely erasing it is not realistic. However, a 60-80 percent overall improvement in appearance is possible.
Simple Subcision can be used to elevate and smooth the scar after which manually performed Microneedling (no no need for the added expense and risks of RF microneedling) can be used to help to better blend the surface of the scar in color and texture with the surrounding normal skin. You would be wise to consult with an experienced, board certified cosmetic dermatologist scar treatment specialist and best of luck.

At this stage, the scar is:

fully matured
stable
What can help:
fractional laser resurfacing
microneedling
minor surgical revision (if very defined)
Reality:

It can be softened and blended, but not completely erased.

When a scar is over two decades old—especially one that originated from chickenpox and has since settled into a smooth, linear mark—it has reached complete tissue maturity. While scars of this age cannot be completely "erased" or made to disappear entirely, their visibility and textural contrast can often be significantly softened.
As an advanced licensed esthetician in Portland, I frequently evaluate long-standing scars on facial and body skin. Here is how mature, linear scars like this are typically approached:
Evaluating Long-Standing Linear ScarsTissue Maturity and Stability: A 20-year-old scar has long since finished its active remodeling phase. The fibrous tissue is dense and stable, meaning surface topicals alone will not alter its structure.
Scar Characteristics: If the scar is just a fine, flat line, it indicates that the atrophic depression has largely filled in over time, leaving a textural or color demarcation rather than an active indentation.
Professional Options for ImprovementTargeted Microneedling / RF Microneedling: Controlled micro-punctures or radiofrequency energy can help break up old, rigid collagen fibers and stimulate mild neocollagenesis around the linear track, improving how light reflects off the skin.
Laser Resurfacing: Fractional ablative or non-ablative lasers can help feather the edges of the linear scar into the surrounding skin, blending micro-texture differences.
Scar Revision Consultation: If the linear contour remains bothersome, a surgical scar revision performed by a qualified physician can excise the old tissue and re-close the site with precise tension, though most practitioners reserve this for more prominent or tethered scars.
A professional consultation is recommended to assess whether mechanical remodeling or laser softening will provide a meaningful cosmetic improvement for your specific scar.