Best thing to clean out a wound is sterile saline, followed by sterile water, followed by potable water.

Peroxide, Alcohol, Betadine, iodine all exhibit some degree of tissue toxicity, may damage healthy cells & retard wound healing.

For most cuts & scrapes - plain old soap & water works just fine.

In the hospital - you use betadine to prep INTACT SKIN - it is not used to clean wounds (some people do use an extremely weak solution to irrigate w/, but this doesn't really do anything more than irrigating w/ saline). Peroxide - not used commonly in most hospital areas. I occasionaly use it to dissolve old blood/exudate around wounds so I can see them better - never use it in a wound.

YMMV

Sam