Covarex is a miconazole 2% antifungal cream. It treats fungal skin infections — athlete’s foot, ringworm, jock itch, skin-fold infections and skin thrush. It is available from a pharmacy without a prescription.
What is Covarex?
The South African Medicine Price Registry lists Covarex as a Schedule 1 cream containing miconazole nitrate 2 g per 100 g — which is miconazole 2%, the standard topical strength.
Schedule 1 means it is available from a pharmacy without a prescription, with a pharmacist involved in the sale. That involvement is useful, because the commonest reason an antifungal cream fails is that the rash was never fungal.
Miconazole belongs to the azole antifungals. Fungal cell membranes depend on ergosterol, a substance human cells do not use; miconazole blocks the enzyme that makes it, so the fungal membrane fails while the surrounding skin is unaffected. That selectivity is why an antifungal cream can be applied to ordinary skin for weeks with very little trouble.
It works against dermatophytes — the fungi behind athlete’s foot and ringworm — and against Candida, the yeast behind thrush and most skin-fold infections. Miconazole also has some activity against certain gram-positive bacteria, which is a modest advantage where a fungal rash has become mildly bacterially infected as well.
Miconazole and clotrimazole are close relatives and are used almost interchangeably for skin infections. Being given one instead of the other is ordinary substitution.
What is Covarex commonly used for?
- Athlete’s foot (tinea pedis) — itching, peeling and cracking between the toes and on the soles.
- Ringworm (tinea corporis) — the round scaly patch with a raised edge and clearer centre. Nothing to do with worms.
- Jock itch (tinea cruris) — fungal infection of the groin and inner thighs.
- Skin-fold infections — under the breasts, in the groin, in abdominal folds. Warm, moist, rubbing skin is where these thrive.
- Nappy rash complicated by thrush, where a barrier cream has not worked.
- Candida skin infections, including at the corners of the mouth and around nails.
- Pityriasis versicolor — pale or darker patches, usually on the back and chest.
- Male genital thrush.
What it does not treat:
- Fungal nail infection. A cream cannot penetrate the nail plate; these need a lacquer or oral treatment over months.
- Scalp ringworm. Hair follicles are too deep for a cream to reach. This needs oral treatment — and it matters, because untreated scalp ringworm in children can scar and cause permanent hair loss.
- Eczema, psoriasis or dermatitis, which are inflammation rather than infection.
- Bacterial infection proper — spreading redness, heat, pus or fever needs antibiotics.
How Covarex fits into this medicine category
| Group | Examples | Treats |
|---|---|---|
| Topical azole antifungals | Miconazole (Covarex), clotrimazole, ketoconazole | Fungal and yeast skin infections |
| Terbinafine | Terbinafine cream and tablets | Dermatophytes; often shorter courses |
| Oral antifungals | Fluconazole, itraconazole | Nail, scalp and stubborn or widespread infection |
| Antibacterials | Azithromycin (Azrotrin), penicillins | Bacteria — no effect on fungi |
| Antiprotozoals | Metronidazole | Anaerobes and parasites, including bacterial vaginosis |
| Topical steroids | Hydrocortisone, betamethasone | Inflammation — not infection |
The last row is where most treatment failures start. A steroid cream on a fungal rash reduces the redness and itching for a few days while the fungus spreads, producing a larger, atypical rash that is harder to recognise and treat. See the antibiotics and antimicrobials hub.
What to check before using Covarex
Be reasonably confident the rash is fungal. Fungal rashes are typically itchy, scaly, spread outwards with a defined edge, and often clear in the centre. Eczema, psoriasis and bacterial infection all look different and need different treatment — a pharmacist can usually tell at a glance.
Speak to a pharmacist or doctor if:
- The rash is on the face, genitals or near the eyes.
- It is on the scalp or nails — a cream will not work there.
- The skin is broken, weeping, crusted, blistered or very painful, or there is spreading redness, swelling or fever.
- You have diabetes or a weakened immune system. Fungal infections are more common, more stubborn and more likely to need medical treatment — and recurrent infections occasionally uncover undiagnosed diabetes.
- You are treating an infant or young child.
- You are pregnant or breastfeeding. Topical miconazole is generally considered acceptable, but confirm.
- You take warfarin. Miconazole — even applied to skin, and particularly oral gel formulations — can increase warfarin’s effect and raise bleeding risk. Tell your doctor.
Using it properly is where most treatment failures are decided:
- Apply a thin layer twice daily as the pack directs.
- Cover a couple of centimetres beyond the visible edge — the fungus reaches further than the rash.
- Keep going for at least one to two weeks after the skin looks normal. Stopping when it looks clear is the commonest cause of recurrence. Courses often run two to four weeks, longer on the feet.
- Wash and dry thoroughly first, especially between the toes.
- Wash your hands after applying, to avoid spreading it.
- For feet: change socks daily, alternate shoes, and treat footwear where you can.
Possible cautions and when to ask a pharmacist or doctor
Side effects are usually mild and local — stinging, burning, redness, itching or peeling where applied. Very little is absorbed through intact skin.
Stop and seek advice if the treated area becomes more inflamed, blistered or intensely itchy — a reaction to the cream itself is uncommon but can look like the infection worsening.
Get emergency help for swelling of the face, lips or tongue, or difficulty breathing.
It is for external use only. Keep it away from the eyes.
Contact a doctor if:
- There is no improvement after two weeks, or the rash is spreading despite treatment.
- Infection involves nails or scalp.
- Infections keep recurring.
- The area becomes hot, swollen, painful or oozing pus, or you develop a fever.
- You have diabetes or reduced immunity and an infection is not settling.
- You take warfarin and have started using it.
Related medicine guides
Frequently asked questions
What is Covarex used for? Fungal skin infections — athlete’s foot, ringworm, jock itch, skin-fold infections and skin thrush. It contains miconazole 2%.
Do I need a prescription? No. It is Schedule 1, available from a pharmacy without one.
Is it the same as clotrimazole? They are close relatives in the same family and are used almost interchangeably for skin infections.
How long does it take to work? Itching often eases within days, but continue for one to two weeks after the skin looks normal — usually two to four weeks in total.
Can I use it on nails or my scalp? No. Creams cannot penetrate nails or reach hair follicles. Those need oral treatment.
Can I use it for eczema? No. Eczema is inflammation, not infection, and needs an emollient and usually a steroid cream.
Can I use it with warfarin? Tell your doctor. Miconazole can increase warfarin’s effect and raise bleeding risk.
Why does my athlete’s foot keep coming back? Usually because treatment stopped too early, footwear stayed infected, or a fungal nail infection is reseeding the skin.