1. After the label is torn off, wipe the part that has not been torn off with alcohol cotton, soften the dried and hardened glue, then absorb the excess water with a paper towel, and finally wipe it off with an eraser.

2. Apply various skin care products such as cream and facial oil to trademarks. After the later skin care products are labeled, even the offset printing will not be left.

3. Wet the towel, and then put some toothpaste on it.