Bactropen is an antibiotic medicine used to treat certain skin infections such as impetigo (red sores), recurring boils and others. It works by killing certain bacteria. This helps to improve your symptoms and cure the underlying infection. Bactropen is meant for external use only. It should be applied only to the affected area of the skin as per the dosage and schedule prescribed by your doctor. In order to get the most benefit, apply it regularly and preferably at the same time each day. Do not use larger amounts or apply it more often or for a longer duration than directed. This will only increase the risk of side effects. Do not use it for more than 10 days. Avoid any contact with your eyes, nose or mouth. Rinse it off with water if you accidentally get the medicine in these areas. Local side effects like minor burning or irritation may be seen after application. Consult your doctor if these persist or if your condition does not improve within 3-5 days. Before using this medicine, inform your doctor if you have any previous history of allergy with it or any other medicine. Pregnant or breastfeeding women should consult their doctor before using it.