Mupirocin ointment is a topical antibiotic medication primarily used to treat skin infections. It is effective in addressing bacterial infections, including impetigo, a contagious skin condition often seen in children. Mupirocin works by inhibiting bacterial growth and can help heal minor wounds, cuts, and sores, preventing the spread of infection. It's also used in the management of secondary infections in various skin conditions, like eczema or insect bites. However, what is mupirocin ointment used for only as directed by a healthcare professional, and it should not be applied to mucous membranes, such as the inside of the nose, without specific medical advice.