Ichthyosis refers to common warts. Common warts on the hands can be treated with physical therapy such as freezing and electrocautery, as well as medication and surgery. Warts are benign skin growths caused by human papillomavirus infection. Some warts can go away on their own, but for those that are painful and aesthetically pleasing, they can be treated with physical methods such as freezing, laser and electrocautery, and for those that are not suitable for physical therapy, they can be treated with medications such as salicylic acid and retinoic acid to loosen the keratin and make it peel off. In addition, it can also be treated by scraping or excision. Avoid scratching the affected area on a daily basis, maintain good hygiene habits, monitor the condition, and consult a doctor if you find any abnormality. Please follow the doctor’s prescription for medication.