Science
Hydrogen peroxide is a compound composed of two hydrogen atoms and two oxygen atoms, also known as H2O2. (It occurs naturally in the animal kingdom and is involved in several natural processes within the body. Hydrogen peroxide therapy is believed by proponents to work by enhancing cellular oxidative processes, improving a body's ability to use oxygen fully.
Use
Intravenous use of hydrogen peroxide in dairy cattle is sometimes used as a cure for mastitis, according to McGill University. Mastitis in cows occurs when the udder becomes inflamed, usually as a response to bacterial invasion in the teat canal.
Warning
Always consult a veterinarian familiar with bovines before attempting a home treatment of hydrogen peroxide via an IV. While mastitis can often be treated with hydrogen peroxide, you need to discover the source of infection and take action to prevent recurrence.