[Medical Marijuana]

And here is a link to an in depth report to the United Nations, on the anti-bacterial qualities of cannabis.
UNODC - Bulletin on Narcotics - 1960 Issue 3 - 002

Here is an extract

The investigations were carried out with specimens of gram-positive micro-organisms - i.e., Staphylococcus pyogenes aureus - and from the gram-negative series the Escheria coli were used. The extracts produced a remarkable bactericide effect upon Staphylococcus aureus, whilst E. coli showed to be resistant. On the basis of these preliminary findings we have aimed our work in this direction. Proof could be furnished that the cannabis extracts produce a very satisfactory antibacterial effect upon the following microbes: Staphylococcus pyogenes aureus, Streptococcus alpha haemolyticus, Streptococcus beta haemolyticus, Enterococcus, Diplococcus pneumoniae, B. subtilis, B. anthracis, Corynebacterium diphtheriae and Corynebacterium cutis - i.e., all of them gram-positive micro-organism. Note-worthy is the effect upon Staphylococcus aureus strains, which are resistant to penicillin and to other antibiotics (fig. 10).

That was one of the peculiar properties of cannabis which was found to be most attractive. We saw the possibility of utilizing the antibiotic locally without any danger of producing resistant strains to other antibiotics administered at the same time throughout treatment. We must also remember the very good effect of substances from cannabis upon Staphylococcus aureus, particularly nowadays, when a high percentage of staphylococcus diseases offers resistance to penicillin. It is interesting that staphylococci manifesting various degrees of resistance to one or more antibiotics (erythromycin included) are sensitive to the antibiotics from cannabis in the same degree throughout. So far, we have not observed that any resistance of the staphylococcus strains to these substances would arise. The degree of the artificially produced resistance to these substances, as shown by Martinec [ 62] , corresponds with the origin and the degree of resistance to substances of the phenolic type and to other disinfectants.