Hello, You have warts caused by flip flops. Now they are spreading and also bleeding. Your symptoms are indicative non-cancerous growths of a particular strain of human papillomavirus (HPV) causing you discomfort. Avoid walking barefooted. Always wear clean, dry socks with shoes, do not share your shoes or socks. Avoid contact with warts on people. Keep the feet dry and clean. You can apply wart removing ointment/cream (Iboxo wart remover cream, etc). Ointment containing salicylic acid are helpful. Apply locally. You can also apply locally wart remover pads (external use) for relief. Get clinically examined by a dermatologist. You will be treated with cryosurgery or given laser treatment. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K, General & Family Physician