Fucidin H antibiotic and corticosteroid: what to know

Fucidin H is commonly used to describe a topical product containing fusidic acid, an antibiotic, and hydrocortisone, a mild corticosteroid. The antibiotic targets susceptible bacteria, while the corticosteroid calms inflammation such as redness and itching. The combination is therefore intended for selected inflamed bacterial skin conditions, not every irritated patch.

A steroid can make an infection look quieter without eliminating its cause. Fungal and viral conditions need different treatment, and repeated antibiotic exposure can encourage resistance. A clinician may choose a different product if infection is absent, the inflammation needs stronger control or the area is close to the eyes.

Use the smallest thin layer directed on the label and apply it to clean, dry skin. Wash your hands afterwards, avoid the eyes and mouth, and do not cover the area tightly unless instructed. Keep the tube for the named person and condition; a cream that helped one rash may be unsuitable for another.

Tell the prescriber about allergies, pregnancy, breastfeeding, childhood use, immune conditions and other medicines or creams. Do not extend the course, apply it to large areas or use it on the face, groin or skin folds without specific guidance. If symptoms do not settle, reassessment is safer than repeated self-treatment.

Seek medical advice if redness spreads, pain increases, pus appears, the skin becomes warm and swollen, or the rash returns after stopping. Get urgent help for swelling of the lips or face, breathing difficulty, widespread hives, severe eye symptoms or rapidly worsening illness. Stop application and ask for advice if the treated skin develops a severe reaction.

Ask what infection is suspected, why both ingredients are needed, how long the course should last and which areas must be avoided. Ask how to recognise treatment failure and whether a plain antibiotic or non-steroid option would be more suitable.