Prescription meds and over-the-counter medications may or may not be available in a given economic collapse, but you can always grow your own medicinal herbs or even source them in the wild. If you could only have one medicinal herb in your survival bag it should be cayenne pepper.
It's an anti-bacterial, anti-viral, and a sterilizer. It'll warm you up, boost your metabolism, and energize you all at once. Cayenne pepper adds spicy heat to improve the flavor of all foods. It's even beneficial, not harmful, for your digestive tract.
The active ingredient, capsaicin, is what's responsible for all the benefits. Lately, even the medical world is giving credit to capsaicin. A product called "Sinus Buster" is a popular over-the-counter sinus medication that is capsaicin based. As an aside, Sinus Buster even claims to chase away headaches.
But you don't need to buy Sinus Buster to chase away headaches or clear your sinuses. Grow your own cayenne peppers and make your own medicine!
Editor's Note: Be aware that cayenne pepper taken orally is a blood thinner. It can irritate the stomach and lower blood pressure. To learn even more about herbal remedies, check out Cat Ellis's book, Prepper's Natural Medicine.
Cayenne pepper will stop, or at least slow, bleeding.