Can I take a shower after receiving the flu vaccine?

Generally, it is not recommended to take a bath within 24 hours after receiving the influenza vaccine; bathing can be resumed after this period. The specific reasons are as follows:

After influenza vaccination, a small puncture site remains at the injection location and requires time to close and heal. Bathing within 24 hours may expose the injection site to contaminated water, increasing the risk of local infection and symptoms such as redness, swelling, and pain. Additionally, some individuals may experience side effects after vaccination, including fatigue, dizziness, headache, or fever. Bathing during this time might exacerbate these discomforts. After 24 hours, once the puncture site has fully closed and no other adverse symptoms are present, bathing is generally safe and will not negatively affect the body.

The body's resistance may decrease slightly after vaccination, so it is important to stay warm while bathing to avoid catching a cold or becoming chilled. After bathing, dry the body promptly, especially the injection site, and keep the area clean and dry. After vaccination, pay attention to dietary adjustments: avoid overly spicy or greasy foods, and refrain from consuming stimulants such as coffee, strong tea, or alcohol. A light, balanced, and nutritious diet is recommended.