Common warts can be removed with a laser. Common warts are a proliferative disease of the skin and mucous membranes caused by human papillomavirus infection. This disease can be treated with physical methods such as laser, freezing, electrocautery, etc. It has the advantage of quick effect and small trauma, and can be treated in batches when there are more skin lesions, but one treatment may not be able to eradicate the skin lesions, and need to be treated several times. The actual warts can also be treated with topical medication, which is suitable for people who are not suitable for physical therapy. Commonly used drugs are retinoic acid cream, 5-fluorouracil ointment, imiquimod ointment and so on. The medication should be used in accordance with the doctor’s instructions. The treatment of common warts should be chosen by the doctor according to the number, size and location of the warts.