In medical you are to wash hand very often. When washing the hands you should wash them with soap from the top to the bottom.
30 seconds.
Joseph Lister
Semmelweiss 1847 washing hands Joseph Lister 1865 Carbolic Spray killed all the bacteria in the operating theatre
A laundry aid dispenser for use in a washing machine, the washing machine providing a housing having an upper surface, a washtub positioned within the
lavage
Wash hands thoroughly before handling any sterile equipment. Use sterile gloves, gowns, masks, and drapes when performing procedures in a sterile environment.
Nasal lavage
Displacement Therapy
This is called nasal irrigation.
lister
Sinus lavage is the medical term meaning washing of nasal sinuses. Sinus lavage may be performed for therapeutic or diagnostic reasons.