Answer: no, to prevent swelling, immediatly upon receiving injury you should place ice on it. Once the eye has gotten black theres not much you could do except wait for it to heal, and perhaps apply some heavy duty oil based concealer to cover it up. Sun glasses are also a great solution!
Answer: Toothpaste is enriched with fluoride to help prevent tooth decay. Fluoride ions are anions, meaning they have a negative charge. (Take a look at where fluoride falls on the periodic table -- fluoride ions want to gain an electron to be more stable, thus they tend to form ions with a -1 charge.)
Substances with negative charges are basic, while those with positive charges are acidic.
Answer: Absolutely not. The marbles, because they cannot be digested, can get trapped inthe wavy linings of your intestines, causing a gas and pressurebuild up which can lead to serious internal complications, such assplitting intestines.
Your stomach acid may also slightly corrode the surface of theglass, making it slightly sharp and therefore putting you at riskof shredding yourself inside-out.
It is not normal to swallow objects such as glass balls.
Answer: You do not have to swallow an endoscope during a Modified Barium Swallow study, search or test. You consume a small amount of barium-laced liquid, pudding and a cookie. As you drink or chew and swallow them in front of a fluoroscope, a video is made for later study. The barium makes it possible to see your "swallow" in action.
Some labs do provide an alternative test that includes placing an endoscope down the nose, but it has a different name.