Fractional carbon dioxide (CO2) laser combined with topical tretinoin for the treatment of different forms of cystic acne.

This study reports on just two patients, one with small (micro) cysts and one with resistant nodular cystic acne.  Just one treatment with the CO2 laser plus treatment with a topical treatment with a tretinoin and antibiotic gel for a month

J Cosmet Laser Ther. 2017 Jul 10. doi: 10.1080/14764172.2017.1349323. [Epub ahead of print]

Fractional carbon dioxide (CO2) laser combined with topical tretinoin for the treatment of different forms of cystic acne.

Pestoni Porvén C1, Vieira Dos Santos V1, Del Pozo Losada J1.

Treatment Response With Once-Daily Topical Dapsone Gel, 7.5% for Acne

This article discusses use of topical dapsone used once daily for the treatment of acne, including adverse effects.
J Drugs Dermatol. 2017 Jun 1;16(6):591-598.
Treatment Response With Once-Daily Topical Dapsone Gel, 7.5% for Acne Vulgaris: Subgroup Analysis of Pooled Data from Two Randomized, Double-Blind Stu.

Draelos ZD, Rodriguez DA, Kempers SE, Bruce S, Peredo MI, Downie J, Chang-Lin JE, Berk DR, Ruan S, Kaoukhov A.

Inflammatory Acne in Asian Women May Be Aggravated By Air Pollution

The authors of a recent study report:

“The prevalence of acne is similar between Asian and Caucasian women, but Asian women have a higher prevalence of inflammatory acne. They also report their symptoms exacerbate during periods of high air pollution. “

https://www.dovepress.com/pollution-and-acne-is-there-a-link-peer-reviewed-article-CCID