Fungal skin infections in Thailand: athlete’s foot, groin itch and tinea in the tropics
A fungal infection in Thailand is a common holiday nuisance: heat, sweat and swimwear that never quite dries give fungi the warm, damp skin they love. Most cases are mild and easy to treat with products a pharmacist can recommend, but some rashes need a doctor. Here’s how to tell them apart, what to do and how to stop it coming back.
The short version
Fungal skin infections in five points
- Common signs: an itchy, scaly rash between the toes, in the groin or a ring-shaped patch, or flat discoloured patches on the chest and back.
- Keep it dry: change out of wet swimwear quickly and dry carefully between your toes and in skin folds.
- Ask a pharmacist: they can look at the rash and recommend an antifungal cream, spray or powder.
- Be patient: treatment usually takes a few weeks, and you need to keep going after the rash fades.
- See a doctor if it spreads, doesn’t improve with pharmacy treatment, or the skin becomes hot, painful and red.
Why fungal infections are so common in Thailand
The fungi that cause skin infections thrive in warmth and moisture. In southern Thailand you are hot and sweaty for much of the day, you spend hours in and out of the sea or pool, and swimwear, socks and shoes often stay damp. Tight clothes trap sweat in skin folds, and walking barefoot around pools, shared showers and changing areas exposes your feet to fungi other people have left behind.
The American Academy of Dermatology lists hot, humid weather and heavy sweating among the triggers that let the yeast behind one common type, tinea versicolor, overgrow on the skin. For many travellers, a fungal rash is simply a side effect of spending a couple of weeks in the tropics.
The common types and how to recognise them
Athlete’s foot (tinea pedis). According to the NHS, one of the main signs is itchy white patches between the toes. It can also cause sore, flaky patches on the feet, red skin (less noticeable on brown or black skin), cracked skin and sometimes small blisters. You are more likely to get it if your feet are wet or sweaty.
Ringworm and groin itch (tinea corporis and tinea cruris). Despite the name, ringworm has nothing to do with worms. It is a fungal rash that is usually ring-shaped, scaly, dry or itchy, and may look red or darker than the surrounding skin. In the groin it is often called jock itch. It can spread from person to person, from animals, and from shared towels or bedding.
Pityriasis versicolor (tinea versicolor). This causes flat, round patches that change the colour of the skin, usually on the chest, back, upper arms, neck or tummy. On white skin the patches are often pink or pale brown and may not tan; on brown or black skin they tend to be paler than the skin around them. It is caused by a yeast that normally lives on everyone’s skin, so you can’t catch it from someone else, and the patches can take a few months to return to normal colour even after successful treatment.
Fungal infection creams in Thailand: what to ask for
For most fungal skin infections, a pharmacy is the right first stop. The NHS advises speaking to a pharmacist first: they can look at the rash and recommend an antifungal treatment, such as a cream, gel, spray or powder, depending on where it is. Pharmacies in Thailand sell antifungal products over the counter, and there are pharmacies in Tonsai village on Phi Phi.
Tell the pharmacist exactly where the rash is, how long you’ve had it, whether it’s spreading, whether you’re pregnant, and about any other medicines or medical conditions. Not every product suits everyone, so always read the packet. We don’t recommend specific products or doses online.
- Keep going: the NHS says treatment for ringworm can take up to 4 weeks, and it’s important to finish the course even if the rash has gone.
- Don’t scratch: scratching can spread the infection to other parts of your body.
- Avoid steroid creams on a fungal rash unless a doctor has prescribed one: on their own they can make some fungal infections worse.
How to prevent fungal infections on holiday
- Change out of wet swimwear soon after swimming instead of letting it dry on you.
- Dry your skin carefully after a shower, especially between your toes and in skin folds. Dab rather than rub.
- Wear flip-flops in shared showers, changing rooms and around pools.
- Choose loose, breathable clothes, and change into clean, dry underwear and socks every day.
- Don’t share towels, socks or shoes, and wash towels and bedding regularly.
- Give your shoes a day to dry out between wears, and avoid shoes that make your feet hot and sweaty.
When you need a doctor, not a pharmacy
See a doctor if the rash hasn’t improved after using the treatment a pharmacist recommended, keeps spreading, or appears on your scalp. Get seen the same day if the skin becomes hot, painful, swollen and red, especially on a foot or leg, or if you develop a fever: this can be a bacterial skin infection that needs proper treatment. People with diabetes or a weakened immune system should see a doctor early for any foot or skin infection. If someone is very unwell, confused or has a rapidly spreading red area with fever, call 1669 (Thailand emergency medical services). Our guide to medical help on Koh Phi Phi lists the clinics on the island.
Is it a fungal infection or another skin rash?
Not every itchy rash in Thailand is fungal. Prickly heat (heat rash) is very common too: tiny, itchy red bumps or blisters in sweaty areas that usually settle once you cool down. Our heat rash guide explains how to tell the difference. Insect bites, sunburn and reactions to sunscreen or new washing powder can also look similar.
If you aren’t sure what a rash is, or it doesn’t behave the way you expect, ask a pharmacist or see a doctor rather than guessing. For vaginal itching or discharge, a pharmacist or doctor can advise; that is a different kind of yeast infection and isn’t covered here.
Fungal skin FAQ
Fungal infections in Thailand: your questions
Can I buy fungal infection cream in Thailand?
Yes. Pharmacies in Thailand sell antifungal creams, sprays and powders over the counter. Show the pharmacist the rash and tell them where it is and how long you’ve had it, so they can recommend a suitable product.
How long does a fungal skin infection take to clear?
Usually a few weeks with treatment. Keep using it for as long as the packet or pharmacist says, even after the rash has gone, or it may come back. Colour changes from pityriasis versicolor can take a few months to fade.
Can I still swim with athlete’s foot?
Yes, but dry your feet thoroughly afterwards, wear flip-flops around pools and showers so you don’t pass it on, and don’t share towels.
Is a fungal rash contagious?
Athlete’s foot and ringworm can spread through close contact and shared towels, shoes or bedding. Pityriasis versicolor is not contagious, because it’s caused by a yeast that normally lives on everyone’s skin.
Will an IV drip help a skin infection?
No. A fungal skin infection is treated with products put on the skin, or occasionally tablets prescribed by a doctor. An IV drip doesn’t treat it.
Keep reading
More on skin and health in the heat
See our guides to heat rash in Thailand and treating sunburn, or find a clinic in our guide to medical help on Koh Phi Phi.
Sources: NHS: Athlete’s foot · NHS: Ringworm · NHS: Pityriasis versicolor · American Academy of Dermatology: Tinea versicolor causes. Last updated October 2026.
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