Ubi pus, ibi evacua is a
Latin aphorism or
adage, often cited, Vol.
6, no. 6, June 18, 1876, p 226. in
medicine, meaning "where pus, there
evacuate ". It refers to what clinicians should do when there is a collection of
pus in the body; that is, to create an opening for it to evacuate. A contemporary expression of the same sentiment is also used: "if there's pus about, let it out".
Examples include what an
otorhinolaryngologist will often do in case of a child with chronic recurring
otitis media: Insert a
grommet in the
eardrum to help evacuate the excess fluid within.
Antibiotics often have difficulties getting into an
abscess, and do not work well because of a low
pH; evacuation through a drainage-channel, on the other hand, will remove a large number of
bacteria and thus greatly aid the resolution of the
infection.
References
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