How to treat flat warts

Flat warts are a common skin condition caused by infection with human papillomavirus (HPV). The following treatment measures can be taken for flat warts: 1. **Physical therapy**: Includes laser surgery, liquid nitrogen cryotherapy, and electrocautery. These methods can effectively remove skin lesions but must be performed in a professional medical facility to ensure safety and effectiveness. 2. **Topical medication**: Under a doctor's guidance, medications such as tretinoin cream, salicylic acid ointment, and imiquimod cream may be used. These drugs inhibit lesion growth, promote surface exfoliation, and help the lesions shed. 3. **Systemic drug therapy**: For recurrent cases, interferon alpha 1b injection or thymosin injection, among other immunomodulatory agents, may be considered to prevent disease recurrence. 4. **Surgical treatment**: If the lesion is large or physical and medicinal treatments are ineffective, surgical excision may be considered. In addition, patients should avoid scratching or rubbing the affected areas in daily life to prevent ulceration, infection, or autoinoculation that could lead to an increase in lesions.