Clotrimazole is an antifungal. As a 1% cream it treats athlete’s foot, ringworm, jock itch and fungal infection in skin folds; as a vaginal cream or pessary it treats vaginal thrush. It is available from a pharmacy without a prescription and is sold under a long list of South African brand names.
What is Clotrimazole?
Clotrimazole is one of the most widely available antifungals in South Africa. The Medicine Price Registry lists it under many names, at essentially the same strength — 10 mg per gram, which is clotrimazole 1%:
| Brand | Schedule | Form |
|---|---|---|
| Clomaderm, Canex Topical, Closcript Topical, Adco-Normospor, A-Por, Fungistop Topical | S1 | Cream |
| Fungispor, Xeraspor T | S2 | Cream |
| Innospore, Fungispor (with applicator) | S1–S2 | Vaginal cream |
Being given one brand when you asked for another is ordinary substitution — the active ingredient is identical.
Clotrimazole belongs to the azole family. Fungal cell membranes depend on a substance called ergosterol, which human cells do not use. Clotrimazole blocks the enzyme that produces it, so the fungal membrane fails while the surrounding skin is untouched. That selectivity is why an antifungal cream can be used on ordinary skin for weeks with very little trouble.
It works against both main groups of skin fungi: dermatophytes, which cause athlete’s foot and ringworm, and Candida, the yeast behind thrush and most skin-fold infections. That breadth is what makes it the general-purpose first choice.
One point of confusion worth settling. Searches for “clotrimazole tablets” are common, but there is no oral clotrimazole tablet registered in South Africa. What people usually mean is either a vaginal pessary or tablet, which is inserted rather than swallowed, or an oral antifungal such as fluconazole, which is a different medicine. If you have been told to take an antifungal tablet by mouth, check the name on the pack.
What is Clotrimazole commonly used for?
On the skin:
- Athlete’s foot — itching, peeling and cracking between the toes and on the soles.
- Ringworm — the round scaly patch with a raised edge and clearer centre. Nothing to do with worms.
- Jock itch — 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 an ordinary barrier cream has not worked.
- Pityriasis versicolor — pale or darker patches, usually on the back and chest.
- Candida at the corners of the mouth and around nails.
Vaginally, as a cream with an applicator or as a pessary:
- Vaginal thrush — itching, soreness and thick white discharge.
- Male genital thrush, treated with the skin cream.
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. This needs oral treatment, and it matters — untreated scalp ringworm in children can scar and cause permanent hair loss.
- Bacterial or viral infection, and eczema or psoriasis, which are inflammation rather than infection.
How Clotrimazole fits into this medicine category
| Group | Examples | Targets |
|---|---|---|
| Topical azole antifungals | Clotrimazole, miconazole, ketoconazole | Fungi and yeasts on skin and mucous membranes |
| 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 | Anaerobic bacteria and parasites, including bacterial vaginosis and trichomonas |
| Topical steroids | Hydrocortisone, betamethasone | Inflammation — not infection |
The last two rows account for most treatment failures. Vaginal symptoms are not always thrush — bacterial vaginosis and trichomonas cause discharge too, and neither responds to clotrimazole. And a steroid cream on a fungal rash calms the redness while letting the fungus spread, producing a larger, oddly shaped rash that is harder to recognise. See the antibiotics and antimicrobials hub.
What to check before using Clotrimazole
Be reasonably confident the problem is fungal. Fungal skin rashes are itchy, scaly, spread outwards with a defined edge and often clear in the centre. A pharmacist can usually tell at a glance, which is one advantage of buying it over the counter rather than online.
Speak to a pharmacist or doctor if:
- It is your first episode of vaginal thrush, or you are under 16 or over 60.
- Vaginal symptoms come with fever, pelvic or lower abdominal pain, an unpleasant smell, unusual bleeding, or blistering or sores — those point away from thrush.
- Thrush has recurred more than twice in six months.
- You are pregnant or breastfeeding. Vaginal clotrimazole is commonly used in pregnancy, but confirm first, and use an applicator only if advised.
- You have diabetes or a weakened immune system. Fungal infections are more frequent, more stubborn, and repeated thrush occasionally uncovers undiagnosed diabetes.
- The rash is on the face, scalp or nails, or the skin is broken, weeping, crusted or very painful.
- You are treating an infant or young child.
Using it properly is where most failures are decided:
- Apply a thin layer two or three times daily as the pack directs.
- Extend a couple of centimetres beyond the visible edge — the fungus reaches further than the rash.
- Continue for 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, and wash your hands afterwards.
- Vaginal products can damage latex condoms and diaphragms — use additional contraception during treatment and for several days after.
Possible cautions and when to ask a pharmacist or doctor
Side effects are usually mild and local: stinging, burning, redness, itching or peeling where it is applied. Very little is absorbed into the body.
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, oozing pus, or you develop a fever — that suggests bacterial infection needing different treatment.
- Vaginal symptoms return within two months, or do not settle within a week of treatment.
Related medicine guides
Frequently asked questions
What is clotrimazole used for? Fungal infections — athlete’s foot, ringworm, jock itch, skin-fold infections, skin thrush, and vaginal thrush when used as a vaginal cream or pessary.
What is clotrimazole cream used for? Fungal skin infections. The same 1% cream treats athlete’s foot, ringworm, jock itch and male genital thrush.
Are there clotrimazole tablets? Not to swallow. There is no oral clotrimazole tablet registered in South Africa. Vaginal pessaries are inserted, and oral antifungal tablets are usually fluconazole, a different medicine.
Can I use it on my face? Only on advice. Facial skin is more sensitive, and facial rashes are frequently not fungal. Ask a pharmacist or doctor first.
Can I use it for eczema? No. Eczema is inflammation, not infection, and needs an emollient and usually a steroid cream.
How long does it take to work? Itching often eases within days, but continue for one to two weeks after the skin looks normal — typically two to four weeks in total.
Do I need a prescription? No. Most clotrimazole creams are Schedule 1 or 2 and available from a pharmacy without one.
Can I use it during my period? Vaginal treatment is usually better delayed until after a period. Ask a pharmacist.