Green Nail Syndrome (Pseudomonas aeruginosa Nail Infection): Two Cases Successfully Treated with Topical Nadifloxacin, an Acne Medication.

Green nail syndrome (GNS) caused by Pseudomonas aeruginosa is the most common bacterial nail infection. The treatment of GNS is challenging in many cases and recommendations based on clinical trials are lacking. We report two cases with GNS successfully treated with off-label use of topical nadifloxacin, a fluoroquinolone approved for acne and bacterial skin infections in some countries.