Widely seen as the golden standard of disinfectants, Chlorhexidine came into medical use in the 1950s. It is a disinfectant and antiseptic that is used for skin disinfection before surgery and to sterilize surgical instruments. In addition, Chlorhexidine is also used for cleaning wounds, preventing dental plaque, treating yeast infections of the mouth, and to keep urinary catheters from blocking. Bear in mind that Chlorhexidine is ototoxic; if put into an ear canal which has a ruptured eardrum, it can actually lead to deafness. Furthermore, Chlorhexidine can also cause a rare but serious allergic reaction that may be life-threatening. So, to make sure you’re going to be safe, get emergency medical help if you have any of these signs of an allergic reaction: hives, severe skin rash; wheezing, difficult breathing; cold sweats, feeling light-headed; swelling of your face, lips, tongue, or throat. On a side note, it is still not known if chlorhexidine passes from mother to fetus during pregnancy. Therefore, consult your doctor before using it