Retapamulin is primarily used as a topical antibiotic for the treatment of skin infections. It is effective against certain types of bacteria, particularly those causing impetigo, a common skin infection in children. The medication works by inhibiting bacterial protein synthesis, which helps to stop the growth and spread of the infection. It is applied directly to the affected area, usually twice a day for a short duration, as prescribed by a healthcare provider. Retapamulin is particularly valued for its targeted action and minimal systemic absorption, reducing the risk of widespread side effects. It is not typically used for severe or deep skin infections but is effective for superficial bacterial skin conditions. Always follow medical advice for proper application and duration of use.