For treating frontal staphylococcal acne effectively after one session without darkening or scarring, a combination of medical and dermatological interventions is recommended:

1. Professional In-Clinic Treatments

• Laser Therapy (Nd:YAG, IPL, or Fractional CO2 Laser) – Targets bacteria, reduces inflammation, and promotes healing without scarring.
• Photodynamic Therapy (PDT) with Blue Light – Kills Staphylococcus aureus and reduces oil production.
• Chemical Peels (Salicylic Acid or Azelaic Acid Peels) – Clears blocked pores and reduces bacterial growth while preventing pigmentation.
• Microneedling with Antibiotics or PRP – Boosts healing and skin regeneration without hyperpigmentation.

2. Medical Treatment (Prescription-Based)

• Topical Antibiotics – Mupirocin, Clindamycin, or Fusidic Acid to eliminate Staphylococcus aureus.
• Oral Antibiotics – Doxycycline or Minocycline if the infection is severe.
• Benzoyl Peroxide 2.5%-5% – Reduces bacteria and inflammation.
• Retinoids (Adapalene, Tretinoin) – Prevents clogged pores and promotes skin renewal.

3. Home & Post-Treatment Care

• Non-comedogenic Sunscreen (SPF 50+) – Prevents darkening and scarring.
• Gentle Cleansers (Benzoyl Peroxide or Tea Tree Oil) – Keeps the area bacteria-free.
• Hydration & Barrier Repair (Niacinamide, Ceramides) – Reduces irritation and hyperpigmentation.

Would you like a specific treatment protocol for home use or dermatologist-based intervention?