How many laser sessions are needed for melasma?

Feb 27, 2025 Source: Cainiu Health
Disease description:

I am 28 years old and have had nevus of Ota on my face for some time. I have tried various skincare products and methods, but the results have not been significant. I heard that laser treatment can effectively remove these spots and would like to know how many sessions are needed to achieve the desired results?

Doctor's answer (1)
Dr. Chen Lu

Acquired bilateral nevus of Ota-like macules typically appear in the zygomatic area, presenting as grayish-brown spotted pigmentation that affects the patient's facial aesthetics. Laser therapy is currently a commonly used treatment method for such pigmented lesions. Its mechanism involves utilizing laser energy to target the pigment particles, enabling their removal by phagocytic cells within the body, thereby achieving the desired therapeutic effect. Usually, the treatment may require 2 to 6 laser sessions, with each session spaced 4 to 6 weeks apart.

However, the number of laser treatments required for acquired bilateral nevus of Ota-like macules varies among individuals due to several factors, including the depth and size of the pigmentation, skin type, and the patient's healing response. For smaller, lighter pigmented macules, satisfactory results can often be achieved with 2 to 3 laser treatments combined with proper moisturizing and sun protection measures. In contrast, larger and deeper pigmented lesions may require 4 to 6 treatment sessions.

To ensure optimal outcomes, patients should seek treatment from experienced physicians at reputable medical facilities and follow post-treatment care instructions, including avoiding sun exposure, using sunscreen, and maintaining appropriate skincare to promote healing and prevent recurrence.