What should you know about erythromycin for folliculitis?

Folliculitis is inflammation around hair follicles. Small red bumps, pus-filled spots, tenderness, itching, or crusting can occur after shaving, sweating, friction, or a blocked follicle. Bacteria are one possible cause; yeast, irritation, ingrown hairs, and inflammatory conditions can look similar. An antibiotic will not treat every cause.

A clinician may examine the distribution and ask about shaving, products, swimming, medicines, and previous episodes. They may take a sample when infection is persistent, extensive, or not responding. Erythromycin can be given in a form applied to the skin or taken by mouth, depending on the assessment.

Use erythromycin only as prescribed and follow the stated schedule. Tell the prescriber about allergies, pregnancy, liver problems, and other medicines because interactions can matter. Keep affected areas clean, pause shaving or waxing while they are irritated, avoid picking, and wear loose clothing. Your clinician may instead choose [Topical Antibiotic Therapy](/treatments/medical-dermatology/topical-antibiotic-therapy/) or [Antibiotics For Skin Infection](/treatments/medical-dermatology/antibiotic-therapy-for-skin-infection/).

Seek prompt care if redness spreads, pain becomes severe, lumps enlarge, or fever develops. Get urgent help for facial swelling, breathing difficulty, faintness, severe diarrhoea, or a blistering rash after erythromycin. Arrange review if spots keep returning or do not improve as expected, because the cause may not be bacterial.

Ask what is causing the folliculitis, why erythromycin fits that cause, whether a skin sample is needed, how to handle missed doses, and when the treatment should be reviewed.