Fractional lasers intentionally injure your skin on a microscopic level, so the treatment can be uncomfortable—it can feel hot or like a pinch or the snap of a rubber band—but the level of pain you’ll feel will depend on your own tolerance and the intensity of the treatment. Swelling, redness, and tenderness can last anywhere from a few hours to several days to a few weeks, depending on the aggressiveness of your treatment and your skin sensitivity.
As you heal, watch for signs of infection or contact dermatitis. Acne, milia, and herpes cold sores can also flare up post-treatment. If you are prone to cold sores, it’s beneficial to begin an antiviral treatment two days prior to your treatment. You will have swelling, redness and mild discoloration of the skin with tiny dots on the skin following your treatment. Bleeding, oozing, crusting, and scabbing is uncommon with less intensive treatments. If you experience blisters, scabbing, or significant pain after your treatment, contact your physician. These could be indicators of an infection. Â
There’s some risk of scarring, which can be temporary or permanent and can lead to hypo- or hyperpigmentation. These risks are significantly less common with fractionated lasers but are still possible. Â
The best way to avoid these complications is by choosing a laser surgeon who’s experienced in laser treatments. It’s also important to prepare your skin and body prior to the treatment to avoid these complications. According to Dr. Hessler, “Antivirals can limit cold sore outbreaks, which can lead to scarring, and hydroquinone or similar treatments can prevent PIH (postinflammatory hyperpigmentation) in predisposed individuals.” Using a high-SPF sunscreen is extremely important after treatment to avoid pigmentary changes to the skin.
Your physician will also make sure that your eyes are protected during the treatment. Everything from the numbing cream to the laser itself can damage eyes.