CASE REPORT
Treatment of post-herpetic scars with Er:YAG laser
This is a case report using ETHEREA-MX® and DualMode® handpiece.
Dr. Karina Passos
Dermatologist
Buenos Aires - Argentina
The varicella-zoster virus (VZV), when reactivated in the sensory nerves, can cause a painful rash in the form of clustered vesicles that develop into ulcers and scabs, mainly on the forehead. When these lesions are extensive, poorly healed, or manipulated, the damage to the epidermis and dermis can be deep enough to compromise normal skin regeneration.
In addition to the visual impact, these scars can cause emotional discomfort and affect the patient's self-esteem. Treatment options include chemical peels, microneedling, skin lightening, and laser technology. Choosing the ideal treatment depends on the depth of the scar, the degree of pigmentation, and the individual skin's response. Among the available technologies, ablative fractional lasers have stood out for their effectiveness in stimulating collagen and evening out skin tone.
The 2,940 nm DualMode® Erbium-YAG laser is compatible with the ETHEREA-MX® and ZYE® platforms and provides high precision, providing controlled ablation. Its mechanism enables cell renewal, collagen fiber reorganization, and skin lightening, making it ideal for simultaneously treating atrophy and hyperchromia.
In this case, three monthly treatment sessions were performed with the DualMode® laser, the first two combined with PDRN as drug delivery. After the protocol, significant improvement in skin texture was observed, with progressive reversal of atrophic depressions, in addition to a significant reduction in hyperchromia.