[Treatment of rosacea with metronidazole internally and externally].

Twenty-two patients suffering from rosacea papulosa or rosacea papulo-pustulosa were treated with Metronidazole at a low dosage (125 or 250 mg/d) for 2 to 6 months. According to our observations during a follow-up period of 12 months, this long-term therapy is well-tolerated and early recurrences are rare in comparison to the former short-term therapy with Metronidazole. It may be called an alternative to tetracycline therapy.