Expired alcohol is generally not recommended for continued use and its disinfecting effect is uncertain.
Alcohol used for disinfection in the clinic is generally referred to as medical alcohol, which is made from a 75% concentration of ethanol solution, and can kill intestinal pathogens, pyogenic cocci, pathogenic yeasts, and common hospital pathogens.
Medical Alcohol is contraindicated in people who are allergic to ethanol, and is applied to areas of intact skin. Contact with the eyes should be avoided during administration, and if there is irritation, it should be discontinued immediately and the residue should be washed away with water.
The shelf life of this product is generally 24 months, it is recommended that it be used within the use-limit date, beyond the use-limit date, the disinfecting effect may be weakened, and the deterioration of the product itself will cause potential harm to the body. Specific use should be in accordance with medical advice.