The dragon card is glued does not mean that it is completely invalid, you can gently tear the card, or use warm water or alcohol to wipe, but you need to pay attention to avoid applying strong acid and alkali substances or using hard objects to scratch, so as to avoid damage to the card surface or chip. If the magnetic strip is damaged or the chip is seriously damaged, you need to contact the bank in time to change the card. To avoid sticking cards, it is recommended to place the cards separately from other items to avoid sticking together.