###Human: I have a scab after removing the wart in my arms through laser. What to do? ###Assistant: Hello. I have gone through your case (attachment removed to protect patient identity). In my opinion, it is posted inflammatory scab or crust. You need not to worry about this lesion. Whenever wart is treated either with lotion or with cautery or with CO2 laser, in the end, it similarly forms scab or crust as you are having right now. This shows the germ or virus which was the causative factor has been killed or dead by now. The red area which is lying beneath it is a raw area of skin which will heal once this scab will fall off. Bacitracin ointment is fine. Apply this or apply Polyfax (Polymyxin B sulphate, Bacitracin zinc) ointment twice daily for days. Apply petroleum jelly on it at night. Your lesion is fine. Do not get worried about it. Human papillomavirus. Apply Petroleum Jelly or Polyfax ointment.