Effect of Azelaic Acid on Irritation

Long-term safety of ivermectin 1% cream vs azelaic acid 15% gel in treating inflammatory lesions of rosacea: results of two 40-week controlled, investigator-blinded trials (2014)

Comparative study of therapeutic effects of 20% azelaic acid and hydroquinone 4% cream in the treatment of melasma (2011)

A comparison of 15% azelaic acid gel and 0.75% metronidazole gel in the topical treatment of papulopustular rosacea: results of a randomized trial (2003)

Double-blind comparison of azelaic acid 20% cream and its vehicle in treatment of papulo-pustular rosacea (1999)

The treatment of melasma. 20% azelaic acid versus 4% hydroquinone cream (1991)