Chest drains are tubes inserted into patients’ chest cavities to help them breath by draining away fluids such as water, blood and pus.

Source: https://www.hucknalldispatch.co.uk/health/lessons-from-treating-covid-19-patients-in-nottingham-could-save-many-more-lives-4142351

“They open the plaster and see a skin for three days: blisters, pus, blood,” says the boy’s mother.

Source: https://tumblerridgenews.com/a-leg-fracture-that-is-not-treated-properly-carries-the-risk-of-amputation/

Unless somebody vomits, or there’s something ooey, gooey and pus coming out of there, it doesn’t get cleaned.”

Source: https://nypost.com/2023/01/02/im-a-flight-attendant-heres-why-we-love-turbulence/