How long does redness last after laser treatment?

The mistake here is reading the first week of redness as the whole story. People plan an event or a return to work around the early look of their skin and then find the timeline is longer than they assumed.

The range the source gives

Here is what my.clevelandclinic.org says about redness. The redness in the laser-treated sites generally fades in two to three months but may take as long as six months to up to a year to disappear.

Read both halves of that sentence. The usual window is shorter, and the long tail is real. A cautious planner works from the long end, not the short one.

Who judges redness that lingers

Do not judge your own redness and decide it is normal or not. If it lingers or looks different from what you were told to expect, ask the clinician who treated you rather than waiting it out or covering it up with guesses.

Before treatment, Laser Skin Resurfacing | The Aesthetic Society gives the general outline. How dermatologists treat sun-damaged skin and a guide to wrinkle treatments are useful for comparison.

Plan for the slow end of the range

Do not schedule anything important on the assumption that the short end of the range applies to you. Redness that runs long is within what the source describes, so build the plan for the slower outcome.