We live in an environment of invisible bacteria. They consist of only one cell, and only very strong microscopes allow us to see bacteria in details. Bacteria may vary. Some of them are useful for us, others are considered to be not useful and not harmful. They just live in our organism, being neutral without affecting our life, others penetrating into an organism may cause certain diseases; they are called infectious pathogenic bacteria. For sure, you have faced these pathogenic bacteria. A purulent pimple on the face is work of bacteria. Got the flu? It was caused by bacteria. A number of different diseases: quinsy, bronchitis, laryngitis, pneumonia, otitises, parotitises, cystitis, peritonitis, pyelonephritises, and many others, all of them are caused by various bacteria. Until Fleming, English scientist, discovered a miracle power of antibiotics, many these diseases had been fatal.
Amoxicillin (Amoxil) is one of antibiotics of penicillin group, those first remedies designed to fight against infectious diseases. Amoxicillin penetrating into an organism kills bacterial cells and destroys them. Thus, it helps an organism treat an infection much easier.