They are used for disinfection. The disinfection cotton ball is an alcohol cotton ball. The iodine cotton ball can stay on the skin for a longer time after use, and the disinfection cotton ball evaporates quickly after use.
Alcohol is very volatile. If you want to keep the concentration of alcohol cotton balls, it should be stored in a fairly sealed container. In daily life, you can buy a portable independent package, which is not only portable, but also better preserved. There are two types of packaging in the market: external tweezers and internal tweezers. The included tweezers are placed in the alcohol cotton ball packaging to effectively avoid secondary pollution during use.
Iodine has a strong bactericidal effect and can kill spores, fungi, protozoa, viruses and other functions. It mainly binds to bacterial proteins and inactivates the enzyme proteins. Therefore, it has a certain irritation to mucous membranes and skin. Generally, 2% iodine tincture is used for general skin disinfection or skin infection; 3.5% to 5% is used for skin disinfection in the surgical field. It can even cause dermatitis and iodine allergies, which can cause a systemic rash reaction.