Q I'm trying to re-write our policy and procedure on surgical scrubs for patient skin prepping to include how long we should scrub with povidone-iodine scrub solution before switching to the P-I prep solution. I've found literature that states how long you should scrub hands before gowning and gloving, but I can't find anything to support how long you should scrub the patient's skin before painting it with the P-I prep. Please help.