In short... Infectious diseases are caused by the presence of microbes (protozoa, bacteria, yeasts, and viruses) in our bodies. These microbes destroy our cells and poison them with the toxins they secrete. The body does not remain passive in the face of this attack; it reacts by defending itself with its immune system. Sometimes, however, the immune system can be overwhelmed by the microbial attack, and it becomes necessary to use medications, antibiotics, to kill the microbes. Those used today were discovered starting in 1929. Used excessively and sometimes inappropriately, they have lost their effectiveness because microbes have developed the ability to neutralize the harmful substances that were supposed to kill them. This resistance of microbes, combined with the often harmful side effects of antibiotics, has led to the search for natural alternatives. Indeed, there is a whole range of natural remedies with powerful antibiotic properties, primarily: essential oils from plants used in aromatherapy, grapefruit seed extract, propolis, and echinacea. These natural antibiotics have no harmful side effects and have the advantage of preventing microbes from developing resistance. Furthermore, they strengthen the body's defenses and the immune system in its fight against infection.