Purdue Betadine is a brand of povidone iodine solution that acts as an antiseptic cleanser for skin. It kills bacteria on contact and is ideal for disinfecting wounds. This solution can be used on cuts and minor burns before applying gauze or a bandage. The benefit of buying betadine liquid in a bottle is that it can be diluted with water if needed. It is also available in swabstick form. The swabsticks are pre-saturated and come in packs of three. Simply wipe the swabstick on the area that needs disinfecting and dispose of the stick. Betadine is an essential item to keep in a first aid kit.