Sandflies in Southern Thailand
FR

Translated into English.

Original post
AT
Hi there,

I’m heading back to Thailand soon, and from what I’ve been reading, it seems some beaches/islands are infested with these dreaded sandflies!

I’ve noted the remedy: rub the bitten area with 90% alcohol, then apply soothing cream.

But prevention is better than cure!

Which areas should I avoid right now?

Are there seasons that are more prone to these itchy invasions than others?

I’ve already stayed in Hua Hin, Koh Samui, Koh Phangan, Koh Tao, Krabi, and Phuket without any issues like this.

I’d love to keep it that way...

Thanks
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
PA Partirdeloin Regular ·
Hi Attila,

In the area (further south than Krabi) where I hang out, I’ve never heard of them.

But I’m talking about the mainland because it’s been a long time since I’ve been to an island, even though some are only a few dozen kilometers from my area.

For the remedy, there’s something a bit simpler than what you mentioned: those little vials you find in every 7-Eleven, among other places, that contain camphor, menthol, and eucalyptus. Besides clearing stuffy noses, they’re often recommended for insect bites.

Personally tested for mosquito bites—works like a charm!!!

Since I’m not there right now and don’t have any on hand, I can’t tell you the brand I use, but anyway, there are several, and you’ve got the language skills, so I think you’ll know how to ask. 😛

Safe travels and good prep!

Best,

Partirdeloin
DE Dennis2 Regular ·
Hello,

I got eaten alive in Koh Mook… and badly, while my girlfriend was fine.

So, not everyone’s sensitive the same way…
AT Attila Globetrotter ·
Hi,

But I’m talking about the mainland

True, my research mostly mentioned the islands.

If there’s less risk on the mainland, even better—I’m thinking of booking there instead. 😛

(Vicks VapoRub... Google suggested it to me 😉)
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
AT Attila Globetrotter ·
Hi there,

Yeah, it seems like we’re not all equally affected by the threat!

My blood seems to be less tasty than my partner’s, but still, it ends up being annoying for both of us...🤪
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
DJ Djalma Globetrotter ·
Hi,

I’ve never dealt with sandflies in Thailand, unlike some islands in Indonesia and Madagascar. That doesn’t mean they’re never there, though. It varies from year to year, place to place, time of day, sunlight, etc. They only bite people who lie directly on the sand. Since you’re only staying in hotels with a certain level of comfort, no worries—just lie on a sun lounger instead of a beach towel to avoid bites.
https://www.youtube.com/watch?v=-XCOyB7WStI https://www.youtube.com/watch?v=g2eI67iCbKY
GG GG94 Regular ·
A few years ago, on our way back from Ko Samet, we stopped for a few days in Ban Phe. So many sandflies there!!
Mon site de photos (Voyages et Nature) http://gbois.piwigo.com
AT Attila Globetrotter ·
I see I’ve been lucky so far to never have been bitten!

Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
PA Partirdeloin Regular ·
Hello,

But I’m talking about the mainland

Indeed, my research mostly mentioned the islands.

If there’s less risk on the mainland, that’s great because I’m thinking of booking there instead. 😛

I didn’t specify earlier, but I was talking about the mainland beaches, obviously.

You all swear by the islands, but the mainland has gorgeous beaches too—and they’re so much quieter.

(Vicks VapoRub... suggested by Google 😉)

It’s your call if you want to rely on a foreign brand that costs more than local products... I’d even suggest buying it before you leave since it’s sold in France... 😕 Why bother with Ducros when they go out of their way...

Partirdeloin
AT Attila Globetrotter ·
You all swear by the islands

The island I’d picked wasn’t really one… Geographically, sure. But with a 10-minute ferry ride to the mainland, well…

Personally, I don’t care about islands.

What I’m after is peace on a sandy beach with coconut trees! 😛

From what I’ve read, the north of Khao Lak seems quiet—no sound systems, no jet skis, no clubs, no Russians on a bender.

Ao Nang, my second stop, I already know. It’s not my vibe, but I’ve got great memories of Railay. I’ll just stay a bit outside the center for the nights…

at the higher price

You’re not obsessing over money, are you?
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
PA Partirdeloin Regular ·
at the higher price

You wouldn’t be fixating on money, would you?

I’m all for "locally made," but if it’s cheaper, that’s not my doing.

But I get it—best not to bring it up with you again. Won’t happen again.

As I’ve said before, do what makes you happy—bring it from France. That way, everyone’s happy.

Partirdeloin
AT Attila Globetrotter ·
When you're going away for two or three weeks, you don’t really feel like spending your time running around shops to buy stuff you could’ve packed in your suitcase.

'I shouldn’t have told you too much about it

Money isn’t really my main concern as long as we stay within a moderate budget. 🙂

The question would come up more if I were heading to the USA, Iceland, Switzerland, or Norway...
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
PA Partirdeloin Regular ·
I probably shouldn't have told you too much about it

Money isn't really my main concern...

Good for you, but that’s not the case for everyone—so best not to generalize from your own experience... 😛

Partirdeloin
AT Attila Globetrotter ·
Hence why it’s actually useful to mention your budget right at the start of your post...😛 (Though in a thread about flies, it didn’t seem like an obvious factor...)
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
MA Mavietongs Veteran ·
I had a bad encounter with beach sandflies in Prachuap Khiri Khan on the mainland and on Koh Samet and Koh Mal for the islands.
ma vie est mon voyage
MU Muriel18 Globetrotter ·
Hi there,

You all swear by the islands, but the mainland also has some gorgeous beaches and is so much quieter.

No connection to the post title (sorry Agnès for butting in but just to let you know, on Ko Phra Tong, we didn’t lie on the sand but walked on it quite a bit without any bites), but I’m taking the opportunity to ask for some advice. I’m looking for a beach (island or mainland doesn’t matter) to end our trip: preferably easy to access (we’ll likely be in Khao Sok just before), quiet (very important criterion), in a beautiful setting, and if possible with snorkeling options (from the beach or on an excursion). After lots of research, I was thinking of Koh Lanta (accessible by car from Krabi, for example, though it’s probably much less quiet than Ko Phra Tong), but I’ve found little info on mainland beaches... any suggestions?
Si tu diffères de moi, mon frère, loin de me léser, tu m'enrichis (Saint Exupéry)
AT Attila Globetrotter ·
Thanks! This phenomenon really isn’t isolated at all!
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
AT Attila Globetrotter ·
Hi Muriel,

sorry Agnès for butting in

The discussion is open! !😉
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
PA Partirdeloin Regular ·
Hi Muriel18,

Of course, I could suggest a few places (and I’m certainly not the only one), but I won’t do it here (DM to follow).

Two reasons for that:

-1- It’s not the topic of the discussion.

-2- As I’ve committed to, I won’t share any new local information that might offend the Western pro sensibilities of the thread’s author.

However, since I read that your plans aren’t necessarily for the coming months, I’ll share that info once I have more suitable technical means and also when I have a bit more free time than I do now.

I hope you’ll understand.

Best regards,

Partirdeloin
MU Muriel18 Globetrotter ·
No worries, especially since it’s really not urgent.
Si tu diffères de moi, mon frère, loin de me léser, tu m'enrichis (Saint Exupéry)
AT Attila Globetrotter ·
pro-Western sensitivity

Being pragmatic means having a pro-Western sensitivity?

offend

This isn’t where you’ll offend anyone.🙂
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
LA Lacambuse31 Veteran ·
Sawadeeka! There are always some in Ban Phe! I just got back and my body remembers it!^^
MA Mavietongs Veteran ·
You mentioned little magic vials to soothe bites... I'm interested, but there are quite a few small items in 7/11 with explanations in Thai. If you have a specific name or—even better—a photo, I'd love that. Thanks!
ma vie est mon voyage
PA Partirdeloin Regular ·
Hi Mavietongs,

As mentioned in my message, I’m not currently on-site and don’t have any with me.

If it’s urgent, ask the staff either in English or in Thai using a translation app. FYI, "piqûres d'insectes" is "insect bites" in English. But as I’ve already said, many of these "little things" are labeled for that—opt for the "oils" versions over the "balm" ones.

If it’s not urgent and you don’t feel comfortable communicating on-site, I’ll send you a PM as soon as I can.

Best regards,

Partirdeloin
MI Mielmm ·
Hello,

I’m heading back to Thailand soon, and from my research, I’ve noticed that some beaches/islands are infested with these dreaded insects!

I’ve noted the remedy: rub the bitten area with 90% alcohol, then apply soothing cream.

But prevention is better than cure!

Which areas should I avoid right now?

Are there seasons that are more prone to these itchy invasions?

I’ve already stayed in Hua Hin, Koh Samui, Koh Phangan, Koh Tao, Krabi, and Phuket without any issues like this.

I’d love to keep it that way...

Thanks

Hi, my legs were bitten (devoured!) on the last island I visited in Thailand, Ko Phi Phi. It must’ve been on the sand of a beach that was away from the main ones. I was surprised there was almost no one around except stray cats (I get it now), but the water was so beautiful... I lay down on my towel. The itching started that evening, and the wounds lasted... weeks after I got back—two months, actually. My doctor, who treated me after my return, had never seen anything like it...
AT Attila Globetrotter ·
Ughhh, damn insects! 🤪😠
Un si beau paysage : concours de photos amical de juin 2026 Rubrique Jeux Voyages C'est le moment de voter!
KL Klemo ·
Hello,

I got eaten alive at Koh Mook… and well, my girlfriend wasn’t affected at all.

So, not everyone is sensitive in the same way…

Hi, do you remember which beach it was? I’m going to Ko Mook in February
DE Dennis2 Regular ·
Hello, no, I never knew that—those itches aren’t immediate, are they!
DJ Djalma Globetrotter ·
Hello, no, I never knew that—itching isn’t immediate!

Really? Are you sure they were sand flies? A sand fly bite, as far as I know—unless there are different varieties—is immediate or nearly so. I’ve experienced this (the *mokafoa*) in Madagascar after a spearfishing trip… We didn’t stay long on the beach!! You don’t see the little critters, but you sure feel them. It’s true that the marks on the skin appear after the itching, though. Kind of like mosquitoes, but meaner. The real problem is scratching, which can infect the bites. If you don’t scratch, they disappear pretty quickly.
https://www.youtube.com/watch?v=-XCOyB7WStI https://www.youtube.com/watch?v=g2eI67iCbKY
KL Klemo ·
I read that the pain can only show up 2 or 3 hours later... but hey, it depends on the person.
DE Dennis2 Regular ·
Yeah, you don’t see them, and afterward it itches like crazy—scratching just makes it worse.

I’ve found something that helps now: I put on Saletphangphong, a Thai herbal balm, when I get bitten, which happened to me last week in Ranong. I’d used mosquito repellent, too, but no luck.
DJ Djalma Globetrotter ·
Yeah, the best solution is anti-itch cream, whether it's local or from a pharmacy. I don't really trust repellents, not even for mosquitoes, actually. With some types of mosquitoes, it works, but with others, you'd have to spray the product every 10 minutes!
https://www.youtube.com/watch?v=-XCOyB7WStI https://www.youtube.com/watch?v=g2eI67iCbKY
GA Gaura Veteran ·
Sand flies are like mosquitoes in France—I get eaten alive by all these critters, while my husband and the various friends who’ve come with us weren’t bothered at all. At home, the itching and reactions don’t show up right away, and it took me ages to figure out what was going on. Since I was using mosquito repellent and treated clothing for evenings out, I thought bed bugs were attacking me at night... except I never saw any, and the bungalows were pretty much drenched in insecticide because Europeans can’t stand cockroaches. I wasn’t scratching, but the itching kept me up at night... until someone told me about sand flies. In my research, I found that DEET-based products repel these tiny pests. Now I slather it on first thing in the morning and after every swim... my life’s changed, thank you Insect Ecran Infested Zones! (free plug after testing by the consumer magazine *Que Choisir*). I don’t trust local products—they might be counterfeit—so I bring my own supplies from France. Without that, I wouldn’t have gone back to Koh Sukorn and Prachuap Khiri Khan, places I love. People who aren’t bothered by these bugs or only have mild reactions can’t really tell if beaches are sand-fly-free. Also, know that sun loungers don’t protect you—I used them on every beach... Have a great holiday anyway... with the right chemicals, since there’s no better option.
gaura

Similar discussions

You might also like