I never thought that those membranes on the inside of an eggshell were good for anything, except if you’re a chick inside an egg. Now it turns out that egg membranes can be used as natural bandages. That being said, you’ll need to keep a dozen eggs handy whenever you do anything dangerous.
A National Institute of Health study found that egg membranes could make an ideal covering for skin graft dressings, due to the egg membranes properties of wound protection, pain relief, and the promotion of infection-free healing. And the guys at Tips on Food Storage say you can use the membranes to quickly stop bleeding from a would too. In order to use this method, you’ll have to carefully peel the egg membrane out of the egg, after having cracked an egg, and poured out the egg white and yolk. Apply the membrane to the wound and keep pressure on it until it hardens, and you can get proper stitches and wound dressing from a medical professional.
I think that plasters and bandages are probably more handy and sterile than plain old eggs, but it makes you wonder if they weren’t used in the past as bandages as well.