Thirty-seven patients with psoriatic nail dystrophy were treated with intradermal nail-fold injections of either triamcinolone acetonide or triamcinolone hexacetonide, using the Port-O-Jet needleless injector. Mild nail-matrix changes showed a very good response to treatment, whilst nail-bed and/or hyponychial changes causing onycholysis and the more severe types of dystrophy usually showed little improvement. Although in occasional cases this may be a useful form of treatment, we would not recommend its general use in patients with psoriatic nail dystrophy.