One should understand the principle of mole pen, mole pen is a treatment tool used to remove moles or spots, the main principle is that while carbonizing and removing moles or spots, it can also rapidly coagulate blood vessels to ensure that moles will not bleed at the same time, and it also has antibacterial effect, which can try to ensure that moles or spots will not recur. Nowadays, the clinical application of mole pen is still relatively widespread, but while applying mole pen treatment, attention should be paid to the problem. After treatment, attention should be paid to rest and local skin maintenance, do not drink dark-colored drinks, and do not eat spicy and stimulating food, and do not drink alcohol to avoid pigmentation. You should also pay attention to sun protection, and the scab that appears after mole spotting must not be picked by hand, but must fall off naturally. Mole spotting pen is still widely used in clinical practice, and the effect is still relatively good.