The goal of this clinical trial is to compare the efficacy and safety of long-pulsed ND:YAG laser and intense pulsed light in the treatment of traumatic and post-surgical erythematous scars. Forty patients presenting with traumatic and post-surgical erythematous scars on the head and neck, of six months' duration or less, were randomly divided into two equal groups. Group A patients received long-pulsed ND:YAG laser sessions, while Group B patients received intense pulsed light sessions. Four sessions were given at four-week intervals.

Inclusion Criteria:

Patients of either gender, aged more than 12 years, presenting with an erythematous scar on the head and neck area, traumatic or post-surgical, and of a duration equal to or less than six months.

Exclusion Criteria:

• 1. Patients with post burn scars, scars of more than six months duration, keloids, post acne atrophic erythematous scars or scars that are not located on the head and neck area.

  2. Patients with active bacterial, viral, or fungal cutaneous infection within the scar tissue.

  3. Patients who are pregnant or lactating. 4. Known contraindication to laser therapy. 5. Use of Isotretinoin within the previous 6 months.