Breaking these large molecules into smaller components involves: 1  movement: propels food through the digestive system. 2  secretion: release of digestive juices in response to a specific stimulus. 3  digestion: breakdown of food into molecular components small enough to cross the plasma membrane.
Over-the-counter pain relievers, like Advil (ibuprofen), Aleve (naproxen sodium) and Tylenol (acetaminophen), are presumed to be safe. Since they don't require a prescription, directions and warnings aren't always taken seriously.
Tincture is a very good agent, but it is drying to the skin and very irritating when applied to open sores. Povidone iodine is an organic compound that does not irritate the skin significantly. It is not as potent as the tincture, but is still one of the most effective antiseptics available. It is safe if used wisely.