Flu season is approaching, and many people are starting to go to clinics to get vaccinated, but doctors warn: although the vaccine is safe and effective, there are some common habits that may harm its effectiveness or worsen side effects.
1. Don’t take painkillers in advance – not even Acamol
One of the most common mistakes after receiving the vaccine, according to experts, is taking painkillers too early – especially those from the anti-inflammatory family, such as ibuprofen (Nurofen).
Studies show that such medications may suppress the immune system and interfere with the production of antibodies that the vaccine is meant to stimulate. Even Acamol (paracetamol), which is considered relatively safe for relieving mild pain or low fever, is not recommended before getting the vaccine.
Although a low dose after the vaccination can help relieve local arm pain or mild fever, preventive use may reduce the vaccine’s effectiveness.
In addition, excessive use of painkillers in general – and especially at an older age – may lead to serious problems such as stomach ulcers, kidney failure, and even heart failure.
2. Avoid excessive alcohol consumption
A glass of wine here and there won’t hurt, but heavy drinking after vaccination can worsen side effects and weaken the immune system.
Alcohol affects the function of white blood cells and weakens the body’s ability to fight infections – which may lead to fatigue, muscle pain, or tenderness at the injection site. In addition, alcohol is a diuretic – which can cause dehydration and negatively affect antibody production after vaccination.
3. Exercise? Yes, but gently
It is recommended to avoid intense workouts for a day or two after receiving the vaccine. Such activity can cause increased fatigue, headaches, and weakness. However, moderate activity may actually help.
A 2022 study found that brisk walking, light jogging, or cycling for 90 minutes after the vaccination led to an increase in antibody levels – without an increase in side effects.