Anyone know how to actually make antibiotics? Like penecillin from bread mold? Long term SHTF situation, might need a book or know how to make it. I know how to make soap from hardwood ashes and lard, or rendered fat. Have books on medicinal plants. Just wondering. Can the powered form of antibiotics for animals be kept sealed and at room temperature for any long period of time? I know about the temporary fillings. Brushing after every meal and flossing will keep cavities away for a long time. No sugary snacks. Anyway, health and medicine could be the hardest thing survivalists have to deal with. Storing food, living off the land, shelter, fire, purifying water, having a stock of ammo, traps, snares, bow and arrow, etc, are all easy. Keeping healthy, especially in cold rainy or snowy weather could be hard without antibiotics for bronchitis or pnumonia, or even treating open wounds, cuts, scrapes, broken bones. A lot to think about and prepare for. Of course if you can keep away from the masses of people, your chances are better not to catch something.