Clinical treatment of flat warts ointment is more varied, you can choose 2.5% or 5% 5-fluorouracil ointment, 3% phthalidomide cream dotted application of the affected area, or choose 0.1% retinoic acid cream, imiquimod cream for treatment. In addition to the choice of ointment, you can also do local liquid nitrogen freezing, electrocautery, as well as laser treatment. Flat warts are mainly transmitted through direct contact, so it is important to avoid contact with the limbs of patients suffering from warts, and patients should avoid scratching, so as not to cause inoculation of the limbs. The diet should be rich in vegetables or plant protein, which is good for flat warts.