As Dr Samuel pointed out, different scars require different treatment modalities. Hypertrophic scars benefit from steroid injections and also certain fractional lasers.
Fractional ablative lasers like the CO2 or Erbium-Yag achieve very good results on clinical studies but are accompanied by much downtime.
The latest fractional non-ablative lasers such as the Erbium-Glass and Thulium (found on platforms like the De Oro Dual/Fraxel Dual/Sellas Evo/LaseMD) provide good cosmetic outcomes for such scars too with minimal downtime.
My advice is to find an aesthetic practitioner who has experience with using various modalities for scar treatment.
Hope this helps.
