If you’ve just arrived in Chiang Mai or Bnagkok and stepped out of the airport, you probably noticed something strange: people walking around with a small white cylinder stuck in their nose. No, they aren’t sick! They are using Poy-Sian, the most famous nasal inhaler in Thailand. It’s a cultural icon and a survival tool for the tropical heat. If you already have your Soffel Repellent and your Tiger Balm, the Poy-Sian is the third pillar of the “Thai Survival Kit.”
| Feature | Details |
| Price | 20.00 – 25.00 THB |
| Brand | Poy-Sian (Mark II) |
| Ingredients | Menthol, Camphor, Eucalyptus Oil |
| Real Rating | ⭐⭐⭐⭐⭐ (5.0/5) |
Two-in-One Magic
The coolest thing about the Poy-Sian is that it’s a double-sided tool:
- The Top: Unscrew it to reveal the inhaler. Take a deep breath to clear your sinuses and fight dizziness.
- The Bottom: Unscrew the base to find a small reservoir of essential oil. You can dab this on your temples for headaches or even on an itchy spot if you forgot your Wangwan Medicated Oil.
Why is it so popular?
Thailand is hot, and the smells of the street markets can be overwhelming. Poy-Sian provides an instant “reset” for your brain. It’s also a lifesaver for motion sickness during those 762 curves on the road to Pai! It’s so cheap that many travelers buy a whole strip of 6 to take home as souvenirs.
Pros & Cons
Pros:
- Instant Refreshment: Cuts through the humidity and clears your head instantly.
- Versatile: Use it for breathing or apply the oil topically for headaches.
- Super Cheap: For less than $1 USD, it’s the best value-for-money item in 7-Eleven.
Cons:
- Addictive: Once you start sniffing, it’s hard to stop!
- Easy to Lose: Because it’s so small, it often disappears in the bottom of your bag.
The Poy-Sian Inhaler is an undisputed 5/5. It is an essential part of the Thai experience. You haven’t truly “lived” in Thailand until you’ve had one of these in your pocket. Pair it with a cold Betagen from the fridge, and you’re ready to face any 40°C day.

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