Sertaconazole: uses, side effects & brands

Written & medically reviewed by Dr. Sanjay Anbu, MBBS · Last reviewed 5 November 2026

Sertaconazole cream treats ringworm and athlete’s foot. It belongs to the Topical antifungal (extra) group. These creams, lotions and lacquers treat fungal infections of the skin and nails.

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Drug type — dosing is set by your doctor

Measure	Range
Drug class	Topical antifungal (extra)
Type	Prescription
Dose	Individual — ask your doctor or pharmacist

What it is used for

Athlete's foot
Ringworm of the body
Jock itch (groin fungal infection)
Yeast infections of the skin

Common brand names

India: Onabet, Sertacid
Worldwide: Ertaczo

Common side effects

Burning or stinging
Redness
Dryness or itching

Before taking it — precautions

Keep away from eyes and mouth
Tell your doctor if you are pregnant or breastfeeding
Avoid steroid-containing creams on fungal rashes unless a doctor advises, as they can make the infection worse

When to see a doctor urgently

Blistering, swelling or severe rash where applied
Infection spreading despite treatment
Pus, increasing pain or fever (possible bacterial infection)

Not a prescription — no dose shown. The right dose of sertaconazole depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.

Frequently asked questions

Why does my ringworm keep coming back?

Stopping treatment early, sweating, tight clothing, sharing towels and using steroid creams are common reasons. Finish the full course.

Can I use a steroid combination cream instead?

These are best avoided for ringworm; steroids can hide and spread the infection.

Should my family be checked?

Yes. Ringworm spreads through close contact and shared items, so others with itchy rashes should be treated too.

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Sources & further reading

Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.