Can the flu shot make you sick? Do healthy people really need it? Is it possible to catch the flu from the vaccine itself? With so much misinformation circulating, it’s natural to have doubts. Getting vaccinated against the flu, however, remains one of the simplest ways to protect yourself from severe infection. While it may not guarantee complete immunity, the flu shot significantly lowers your risk of serious illness. Here, we answer some of the most common questions about flu shots and share key things to remember once you’ve had yours.What Is a Flu Shot and Why Should You Get It?Influenza, or the flu, is an infection that affects the nose, throat, and lungs, all parts of the respiratory system. The illness is caused by a virus. Most people recover at home with rest, but in some cases, it can lead to serious health problems, especially among vulnerable groups.The flu vaccine offers the best protection against the virus and its complications for nearly everyone. It reduces your risk of infection and can also prevent severe symptoms that might otherwise lead to hospitalization or death.Each year, seasonal flu vaccines are designed to protect against the three strains of influenza that experts predict will circulate the most during that flu season.When Is the Flu Vaccine Available?In the United States, flu vaccines typically become available in September. The flu spreads most actively during specific times of the year in both hemispheres, known as flu seasons. In North America, these usually stretch from October through May.Because it takes roughly six months for vaccine production, distribution in the U.S. often begins in late summer.After getting vaccinated, it takes about two weeks for your body to develop immunity. That’s why September or October is considered the best time to get the shot. However, if you miss that window, getting vaccinated later in the season can still offer valuable protection.What to Avoid After a Flu Shot?Getting your annual flu shot is a straightforward process, but a few simple choices before and after can make a difference in how you feel afterward. Medical professionals and nutrition experts suggest a few practical steps to help ensure your experience is smooth and comfortable.Wear Something You Can Roll Up Easily“Clothing that gives you easy access to the upper arm is ideal,” said Kenneth J. Perry, a South Carolina-based physician, in an interview with Fox News Digital. Because flu shots are given in the deltoid muscle, wearing a shirt with loose sleeves or layers you can remove easily helps avoid unnecessary discomfort.Have a Light Snack Before You Go“You don’t usually need to eat or drink beforehand unless it helps you feel more comfortable,” explained Dr. Michael A. Traub of Crystal Run Healthcare in New York. A small snack, however, can steady your blood sugar and prevent dizziness. According to the U.S. Centers for Disease Control and Prevention (CDC), offering a beverage, snack, or reassurance before vaccination can reduce fainting. Something simple with protein and carbohydrates, such as a banana with peanut butter or yogurt with granola, can help you feel steady during and after your shot.Stay Hydrated Before and AfterThere’s no need to drink excessive amounts of water, but staying hydrated supports comfort and recovery. Both the CDC and Immunize.org recommend drinking water before and after vaccination to maintain circulation and prevent fainting. A glass of water before your appointment and steady fluid intake afterward can help, particularly for people who tend to feel lightheaded during shots.Know How to Ease SorenessMild soreness or fatigue after a flu shot is common. “Typical side effects include slight tiredness, headache, and body aches,” said Dr. Traub. Experts recommend gentle movement or light exercise to help reduce discomfort in the arm. Keeping the arm active encourages blood flow and can ease muscle stiffness.Know What’s Normal and What’s NotMinor aches or fatigue are expected side effects, but symptoms such as wheezing, difficulty breathing, swelling of the lips or tongue, rash, severe nausea, vomiting, or chest pain require medical attention. If these occur, contact your doctor immediately.Who Should Get the Flu Vaccine?The CDC advises annual flu vaccination for everyone aged six months and older, unless there is a medical reason to avoid it.Getting vaccinated each year lowers your risk of severe illness and death caused by influenza, especially for those in high-risk groups.People at greater risk include:Adults aged 65 and olderResidents of nursing homes or long-term care facilitiesYoung children, particularly those under one year oldIndividuals who are pregnant, planning pregnancy, or recently postpartum during flu season
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