What is metronidazole topical? Metronidazole topical (for the skin) is used to treat skin lesions caused by rosacea. Metronidazole topical may also be used for purposes not listed in this medication guide. What is MetroGel? MetroGel (for the skin) is used to treat skin lesions caused by rosacea. MetroGel may also be used for purposes not listed in this medication guide. Description Metronidazole topical gel is used to treat inflammatory lesions (pimples and red bumps) caused by rosacea. Rosacea is a skin disease that causes redness and pimples on your nose, cheeks, chin, and forehead. This medicine is available only with your doctor's prescription. Metronidazole gel USP (topical), 0.75%, is indicated for topical application in the treatment of inflammatory papules and pustules of rosacea. Metronidazole is a synthetic (man-made) drug effective against certain bacteria and parasites (protozoa). The topical forms (gels, creams, and lotions) of metronidazole are used for treating vaginal infections with protozoa such as Trichomonas vaginalis, amoeba, and Giardia. Find patient medical information for Metronidazole topical on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Learn about Metrogel (metronidazole) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. MEtrogyl Gel is a medicine used to treat bacterial skin infections and other inflammatory conditions. MEtrogyl Gel helps kill the harmful bacteria and reduce inflammation, redness, and swelling. Metronidazole gel is a type of antibiotic that treats bacterial infections in your vagina. It doesn’t treat yeast infections or viral infections. Metronidazole gel and cream are antimicrobial skin preparations. They are used to treat rosacea or to reduce unpleasant smells from infected wounds. For rosacea, apply a thin layer twice daily, usually for weeks or months. For wounds, it is usually applied once or twice daily after cleaning.