What should you know about impetigo lip treatment?

A sore on the outer skin of the lip may be managed differently from a lesion inside the mouth or close to the nose. A limited area may be suitable for a prescribed cream or ointment, while multiple or spreading sores may need medicine taken by mouth. Crusting can also result from conditions other than impetigo, including [Atopic Dermatitis](/conditions/atopic-dermatitis/), so treatment should follow an examination rather than a guess.

Clean the outer sore gently, dry it carefully, and use only the medicine prescribed for that area. Keep the product out of the mouth and eyes unless its instructions specifically say otherwise. Finish the prescribed course, wash hands before and after application, and avoid sharing towels, cups, cutlery, cosmetics, or lip products. Further information is available on [Topical Antibiotic Therapy](/treatments/medical-dermatology/topical-antibiotic-therapy/) and [Antibiotics For Skin Infection](/treatments/medical-dermatology/antibiotic-therapy-for-skin-infection/).

Contact the treating clinician if the sore spreads, new lesions appear, medicine irritates the skin, or improvement is not occurring as expected. Seek urgent help for eye involvement, facial swelling that affects breathing or swallowing, severe pain, fever, or rapidly expanding redness. Do not reuse an old prescription for a new lip lesion.

Ask whether the medicine is safe near the mouth, how much skin to cover, what to do after eating, when to return to close contact, and how to respond if symptoms recur.