Garlic
Garlic possesses potent antibiotic, antiviral, antifungal, and antimicrobial properties and is able to help protect and facilitate removal of unfriendly bacteria. It is also very high in natural antioxidants that destroy free radicals, which also supports a strong immune system. Crush it, and eat it raw, in a warm tea, or in lightly cooked food.
Echinacea
Echinacea has been used to treat a wide variety of infections for hundreds of years. Today, this potent herb is used mostly for colds and flu, due to its ability to destroy the most dangerous forms of bacteria and virus.
Manuka Honey
Applied topically it can kill a wide range of pathogens including MRSA and flesh eating bacteria. Use it on minor cuts and abrasions, and infected skin lesions. Natural and effective!
Oil of Oregano
Oil of oregano takes care of pathogenic bacteria without disrupting beneficial bacteria. It is also antiviral and antifungal which makes it a powerful three-in-one combination that rivals pharmaceuticals while not encouraging antibiotic resistance.
This is certainly not an exhaustive list of natural antibiotics, but a great start for an all-natural pharmacy. Also consider, OLIVE LEAF extract, CLOVES, TUMERIC, and even LEMONS to round out your antibiotic arsenal.