Dengue fever is a mosquito-borne illness that affects thousands of people across Thailand each year, especially during the rainy season (May to October). Whether you live in Thailand or are visiting for travel, understanding how to prevent dengue fever is essential to keeping yourself and your family safe.
What is Dengue Fever?
Dengue fever is caused by the dengue virus, transmitted by the bite of an infected Aedes aegypti mosquito. These mosquitoes are active during the day, particularly in the early morning and late afternoon. There are four different dengue viruses, and a person can be infected more than once in their lifetime.
Common Symptoms of Dengue Fever
Symptoms usually develop 4–10 days after being bitten and can include:
- High fever (often sudden onset)
- Severe headache
- Pain behind the eyes
- Muscle and joint pain (often called “breakbone fever”)
- Nausea or vomiting
- Skin rash
- Mild bleeding such as nose or gum bleeding
In more serious cases, Severe Dengue (Dengue Hemorrhagic Fever) may cause internal bleeding, organ damage, or even death. Early diagnosis and monitoring are crucial.

How to Prevent Dengue Fever in Thailand
There is currently no specific medication to treat dengue, so prevention is the best defense. Here are key prevention strategies:
1. Protect Yourself from Mosquito Bites
- Apply insect repellent containing DEET, Picaridin, or oil of lemon eucalyptus
- Wear long-sleeved shirts and pants, especially during daytime
- Use mosquito screens or nets, especially in non-air-conditioned areas
- Stay indoors during peak mosquito activity hours if possible
2. Eliminate Mosquito Breeding Sites
- Remove standing water from buckets, flowerpots, or containers
- Cover or empty water storage tanks
- Change water in vases and pet bowls frequently
3. Stay Informed and Monitor Symptoms
- Be especially cautious during the rainy season
- Monitor your health if you experience flu-like symptoms after mosquito exposure
- Seek medical attention promptly if symptoms occur
Diagnosis and Treatment of Dengue Fever
While there is no antiviral drug for dengue, medical care can help manage symptoms and prevent complications. At Doctor Karon Clinic, we offer:
- Rapid dengue testing kits
- Blood analysis for platelet count and white blood cells
- Symptom management with fever reduction and hydration
- Monitoring for signs of severe dengue
Note: Avoid taking aspirin or ibuprofen, as they can increase the risk of bleeding.
For Tourists Visiting Thailand
If you are traveling in Phuket or anywhere in Thailand and develop symptoms such as fever, rash, or joint pain, visit a licensed clinic as soon as possible. Early diagnosis can make a significant difference in recovery and safety.
Visit Doctor Karon Clinic for Dengue Testing and Care in Phuket
Located near Karon Beach, Doctor Karon Clinic provides fast, safe, and reliable care for both locals and international patients. We offer:
- Rapid dengue test kits
- English-speaking medical staff
- Convenient location for walk-ins and travelers
- Personalized care for tourists and residents alike
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