Acne vulgaris aggravated by sunlight

Area of Science:

• Dermatology
• Photodermatology

Background:

• Acne vulgaris symptoms can exacerbate during summer months despite consistent therapy.
• A subset of patients (approximately 3%) experience worsening acne due to sun exposure.

Purpose of the Study:

• To investigate the efficacy of para-aminobenzoic acid (PABA) as a sunscreen in managing sun-aggravated acne vulgaris.
• To assess PABA's role in improving sunlight tolerance for patients with acne vulgaris.

Main Methods:

• Patients with acne vulgaris experiencing seasonal worsening were treated with a 5% para-aminobenzoic acid (PABA) sunscreen in alcohol.
• The study observed the impact of PABA on patients' ability to tolerate sunlight.

Main Results:

• The addition of 5% PABA in alcohol resulted in marked improvement in sunlight tolerance for affected patients.
• PABA demonstrated significant efficacy in mitigating sun-induced exacerbation of acne vulgaris.

Conclusions:

• Para-aminobenzoic acid (PABA) is an effective topical agent for managing acne vulgaris aggravated by sunlight.
• This finding provides a therapeutic option for patients suffering from sun-aggravated acne, potentially distinct from acne aestivalis.