How often should a band-aid be changed?

Do not use for too long.
First, pay attention to the changes in the wound. If after using the adhesive bandage for 24 hours, there is a pulsating pain similar to a pulse at the wound site, or if there is any discharge, you should promptly open it to check for any redness, swelling, heat, or pain around the wound. If there is, it indicates that the wound has become infected, and you should seek medical attention immediately.

Second, be careful to protect the wound. After using the adhesive bandage, do not frequently press or squeeze the wound with your hands, and try to minimize movement in the area of the wound to prevent impact and avoid reopening the wound.

Third, the adhesive bandage should not be used for too long and should be changed once a day.
How often should the bandage be changed?
Although adhesive bandages are convenient and have good hemostatic and protective effects for small wounds, they are not a cure-all and should not be used for extended periods. If the wound is not breathable and is not properly managed, and the adhesive bandage is not changed, it can worsen the condition of the wound. Therefore, the adhesive bandage should be changed at least once a day to avoid prolonged blockage of skin pores, which can lead to discomfort due to poor ventilation.

After using the adhesive bandage, it is important to observe the changes in the wound and to change it regularly to effectively prevent infection and pus formation.
If the adhesive bandage has been on for more than 24 hours and the pain in the wound worsens, or if there is any discharge, it is necessary to open it for inspection promptly. If you find signs of infection such as redness, swelling, or exudate, you should stop using the adhesive bandage immediately and seek medical treatment.
What to do if the adhesive bandage won't come off?
In daily life, small accidents can sometimes lead to minor wounds, and applying an adhesive bandage can provide emergency hemostasis, which is very convenient. However, it can also happen that the adhesive bandage sticks to the skin and cannot be removed. Forcefully tearing it off can be extremely painful and may further injure the wound. Here, I have compiled some solutions for when the adhesive bandage won't come off:
1. Soak the adhesive bandage in warm water, or apply a warm towel to it, and then gently peel it off after a moment.
2. Try to peel the adhesive bandage downwards as much as possible, without lifting it too high, and slowly pull it down to reduce pain.
3. Moisten the adhesive bandage with hydrogen peroxide disinfectant, but be careful not to get it on the wound itself, as it may cause pain.