What is the purpose of mupirocin ointment?

Mupirocin ointment is a topical antibiotic used to treat bacterial skin infections. Its main purposes are:

- To treat minor bacterial skin infections such as impetigo, infected eczema, boils, folliculitis, and small wounds or cuts.
- To help eradicate nasal carriage of Staphylococcus aureus (including some resistant strains) in certain cases when a nasal mupirocin product is prescribed (nasal decolonization, not the skin ointment).

How it works: it inhibits a bacterial enzyme (isoleucyl-tRNA synthetase) that bacteria need to make proteins, helping stop the infection from spreading.

How to use (typical, always follow your clinician’s directions):
- Apply a thin layer to the affected area 2–3 times daily for the duration prescribed (often 5–10 days for skin infections).
- Do not cover with tight bandages unless told to.
- Wash your hands before and after applying.
- Avoid contact with eyes, nose, and mouth.

Common side effects: burning, stinging, itching, or redness at the application site. Serious allergic reactions are rare.

Important: mupirocin won’t help viral or fungal infections. If there’s no improvement within 2–3 days, or if the infection worsens, seek medical advice. Use exactly as prescribed to reduce the risk of antibiotic resistance.

If you have a specific condition or product form (skin ointment vs nasal), I can tailor the details.