Hydroquinone Treatment for Melasma

Initial Treatment and Maintenance

The American Academy of Dermatology recommends combining hydroquinone 4% with triple therapy formulation (hydroquinone 4% + tretinoin 0.05% + fluocinolone acetonide 0.01%) for optimal efficacy 1, 2
Melasma must be managed as a chronic condition requiring long-term maintenance, with intermittent courses of hydroquinone rather than continuous application to minimize toxicity risk 1, 2, 4
Mandatory daily broad-spectrum SPF 50+ sunscreen reapplied every 2-3 hours is non-negotiable throughout all phases of treatment 1, 2, 4

Azelaic acid 15-20% is particularly beneficial for darker skin types due to lower irritation potential and should be considered as an alternative or adjunct 2, 4
When using triple combination therapy, limit the topical corticosteroid component to maximum 2 months to prevent skin atrophy 2, 4

Add intradermal PRP injections: 4 treatment sessions spaced every 2-3 weeks, then maintenance every 6 months 1
Consider oral tranexamic acid 250 mg twice daily, which increases total efficacy to 90.48% compared to 73.68% with topical therapy alone 1, 2

Use modified Melasma Area and Severity Index (mMASI) scores to objectively track improvement 1, 2, 4
Decreases in MASI >60-90% indicate moderate improvement, and decreases in MASI >90% indicate excellent response 1

Failing to address hormonal influences (pregnancy, oral contraceptives, hormone replacement therapy) may limit treatment success 1, 2
Discontinuing all treatment too early—melasma requires long-term maintenance with alternative agents after initial hydroquinone course 1, 2, 4
Counsel patients to avoid smoking, which worsens melasma and impairs treatment outcomes 1, 2