When should the small round sticker from vaccination be removed?

Generally, the small round patch applied after vaccination can be removed about 24 hours after inoculation. However, if there is redness, swelling, or fluid leakage at the application site, the patch should remain in place for a longer period. If in doubt, it is advisable to consult a healthcare professional promptly. Detailed analysis is as follows:

After vaccination, the primary function of the small round patch is to protect the injection site and prevent external contamination. If within 24 hours after vaccination there is no redness, swelling, discharge, or worsening pain at the injection site, the wound is generally healed enough to remove the patch. Removing it helps avoid prolonged coverage that could cause poor skin ventilation, reducing discomfort from heat buildup or potential skin irritation.

If mild redness, slight swelling, or minor fluid leakage occurs at the site, or if an individual has relatively weak skin healing ability, the duration of keeping the patch on should be extended appropriately. The patch should only be removed after the redness and swelling have subsided and any discharge has stopped. During this time, keep the area dry and clean, avoiding friction or contact with water to prevent infection at the injection site.

After removing the patch, monitor the injection site closely. If persistent redness, pus, fever, or other abnormalities occur, clean the area promptly and seek advice from a medical professional—do not attempt self-treatment.