What Is Erbium Laser Resurfacing Done With?

Er:YAG means erbium-doped yttrium aluminium garnet, the material that produces the laser beam. In resurfacing, the beam is directed across selected areas of skin so the clinician can remove very thin surface layers or warm tissue below the surface. This controlled action can support smoother texture and the appearance of fine lines, uneven tone, or some scars. The treatment plan depends on the depth being targeted, the area treated, and your skin’s response.

The device is not the same as a cream or an injection. It is a handpiece used by a trained clinician, with settings adjusted for the intended depth and skin area. Learn more about the [Erbium YAG Laser](/technology/erbium-yag-laser/).

Before treatment, share your medicines, history of cold sores, tendency to form raised scars, recent tanning, and any active rash or infection. Your clinician may recommend pausing selected irritant products and protecting the skin from sun exposure. Afterward, follow the wound-care plan, use only recommended cleansers and moisturisers, and avoid picking or peeling treated skin. Redness, warmth, swelling, flaking, or sensitivity can occur while the surface settles.

Contact the treating clinic if pain, swelling, redness, or drainage is worsening rather than settling, or if blisters, spreading crusting, fever, or a new rash develops. Prompt assessment is also sensible if the treated area becomes increasingly tender or you are concerned about an eye-area treatment. Do not apply unapproved products over healing skin while waiting for advice.

Ask which depth and settings are planned, what skin concern is being targeted, how long the visible recovery may last, which products to stop, and how sun protection will be managed. Also ask whether your medical history or current medicines change the plan.