Impetigo on the cheek: what to know and do

The infection often begins where skin has been scratched, irritated, or affected by another itchy rash. A small red spot may become a blister or shallow sore, then leak fluid and develop a yellow-brown crust. The cheek can feel tender or itchy, although the appearance varies. Enlarging patches, nearby spots, or swollen glands can occur as the infection extends across the skin. A crusted area may resemble eczema or another rash, so an examination helps distinguish them; read more about [Crusting Skin](/symptoms/skin-crusting/) and [Atopic Dermatitis](/conditions/atopic-dermatitis/).

Arrange a medical assessment, particularly when the cheek is close to the eye or the area is spreading. Gently wash the area with clean water and mild cleanser, pat it dry, and avoid picking or scrubbing the crust. Wash hands after touching the face, keep towels and pillowcases separate, and do not share cosmetics, razors, or face cloths. Keep fingernails short and cover the area loosely if a clinician recommends it. Treatment may involve [Topical Antibiotic Therapy](/treatments/medical-dermatology/topical-antibiotic-therapy/) for a limited area or [Antibiotics For Skin Infection](/treatments/medical-dermatology/antibiotic-therapy-for-skin-infection/) when infection is more extensive. Use only the medicine prescribed for this episode.

Seek prompt medical care if redness, warmth, swelling, pain, or drainage is increasing; if fever or marked unwellness develops; or if the infection is moving toward the eye. Urgent assessment is needed for eye pain, vision changes, severe eyelid swelling, rapidly spreading redness, or a child who seems unusually sleepy or difficult to rouse. A clinician should also review sores that recur, fail to improve with prescribed treatment, or leave extensive raw skin.

Ask whether the cheek lesion is consistent with impetigo, whether treatment should be applied to the skin or taken by mouth, and how long to avoid close skin contact. Ask which cleanser and dressing are suitable, when school or work can safely resume, and what changes would mean the medicine needs review.