The hard bumps on the fingers generally refer to flat warts caused by human papillomavirus infection, and their treatment mainly includes medication and physical therapy. 1. drug treatment: drug treatment is divided into external drug treatment and internal drug treatment. The former is suitable for people with large skin lesions or those who are not suitable for physical therapy, and can be used externally with retinoic acid cream or adapalene cream, etc. The latter can be used with immunomodulators such as interferon and levamisole, etc. The latter can be used with immune-regulating agents. 2. Physical therapy: Physical therapy for flat warts includes electrocautery, freezing, and laser, and is generally applicable to patients with a small number of lesions.