Warts on the arms are usually referred to as flat warts, molluscum contagiosum or common warts, which need to be treated by a dermatologist in a hospital and in accordance with the doctor’s instructions. The main methods of treatment include physical therapy, surgical treatment or medication. 1. Flat warts can be destroyed by laser, electrocautery or cryotherapy. It is also possible to surgically cut off a small piece of the wart and bury it under the skin, using the body’s immune system to remove the wart. Some medications such as imiquimod cream and retinoic acid cream are also effective in treating flat warts. 2. Molluscum contagiosum is most common in children and adolescents, and often congregates in schools, kindergartens and other places for episodes. The molluscum contagiosum can be pulled off with tweezers, and rashes that can’t be pulled off with tweezers can be treated with lasers, electrocautery, or cryotherapy. The more the infectious mollusc grows, the more it suggests that the immune system is poor, you can take pidomod oral solution, transfer factor oral solution and other drugs to enhance the immune system to enhance the immune system. 3. The warts can be treated with lasers, electrocautery, freezing and other physical treatments, and for the larger warts they can be removed surgically.