

Hello, this is Sungmo Best Internal Medicine in Jangok-dong, Siheung. As the weather gets colder, immunity tends to decrease, and the number of flu patients rapidly increases. Unlike a common cold, the flu is accompanied by high fever and systemic symptoms, and the risk of complications is higher, so it is important to prepare in advance before the flu season. That's why more and more people are now getting both flu vaccinations and immunity-boosting IV drip treatments.

What's the Difference Between the Flu and a Cold?
| Category | Flu | Cold |
|---|---|---|
| Cause | Influenza virus | Various respiratory viruses |
| Symptoms | High fever, muscle aches, severe fatigue | Relatively mild symptoms |
| Contagiousness | Strong | Relatively low |
| Complications | Can progress to pneumonia, etc. | Low risk |
For the elderly, pregnant women, children, and those with chronic diseases, vaccination is especially recommended, as the flu can lead to complications such as pneumonia.
When is the Best Time for Vaccination?
Immunity does not develop immediately after receiving the vaccine. It is known to take about two weeks for antibodies to form, and the effect lasts for about six months. Therefore, the optimal vaccination period is between September and November, specifically October to November. If you complete your vaccination during this period, you can maintain protection until the flu season from December to February.

We Recommend Vaccination for These Individuals
- Children aged 6 months to 13 years
- Pregnant women
- Seniors aged 65 and over
- Individuals with chronic diseases, adults with weakened immunity
Those with frequent external contact, such as office workers or students, can also protect their own health as well as the health of those around them through vaccination.

After Vaccination
After vaccination, it is safe to stay at the clinic for about 20-30 minutes to observe for any adverse reactions. Mild muscle aches or a slight fever are common reactions and usually improve over time. However, if symptoms such as high fever, difficulty breathing, or convulsions appear, you should seek medical attention without delay.

Why Get IV Drip Treatment Together?
During winter, accumulated fatigue, nutritional deficiencies, and stress can combine to weaken immunity. In such cases, nutritional IV drips can help restore your condition. Sungmo Best Internal Medicine offers IV drip therapy tailored to each individual's condition to boost physical strength and immune function. Combining this with vaccination can provide even stronger preparation against respiratory illnesses. Of course, the effects may vary from person to person.


Preparing for Winter Together in Jangok-dong
Sungmo Best Internal Medicine safely provides flu vaccinations and IV drip treatments in a thoroughly hygienic environment. We examine each patient's condition and provide customized care, and we can also consult on schedules for receiving both vaccination and IV drips on the same day. Checking our clinic hours information before your visit can help reduce waiting times.
As the upcoming season approaches, we hope you prepare for a healthy and warm winter by getting your flu vaccination and IV drip treatment together in Jangok-dong, Siheung.


Feel free to inquire about any questions via chat
Dr. Kim Seonhoo (Specialist in Gastroenterology, Specialist in Gastrointestinal Endoscopy) · Medical Staff Introduction · Last reviewed 2026-08-06
