Alcohol, namely ethanol, is a medium-acting disinfectant, which has the effect of inhibiting the activity of bacteria and fungi. 75% alcohol is commonly used clinically, which can make the protein of bacteria inactive, interfere with the metabolism of microorganisms and dissolve the body of certain bacteria, so as to achieve the purpose of sterilization. However, because fungi are more vital than bacteria, when using alcohol to kill fungi, it takes a longer time to be effective. Fungus is a conditionally pathogenic bacteria, containing bacillus, very suitable for survival at a temperature of 22 ℃ – 36 ℃, infectious and recurrent is very strong, need to use highly effective disinfectants to kill, such as iodophor, peracetic acid, hydrogen peroxide, potassium permanganate, etc.. When a fungal infection occurs, it is still necessary to go to the hospital for examination to clarify the causative organism and choose its sensitive antibiotics or ointments, etc. for treatment. In addition, fungi do not tolerate high temperatures, and boiling used items in boiling water and exposing them to sunlight while using medication is very effective in killing the fungus. If a fungal infection causes tinea pedis, hot water should be used to scald socks and Candida vaginitis should be used to scald underwear, while keeping the feet and vulva dry to prevent different parts of yourself from infecting each other or cross-infection between individuals.