Chlorhexidine is a chemical that is commonly used as an antiseptic to kill germs and bacteria. It is often found in soaps, mouthwashes, and medical products like wound cleansers. Full definition
The most common side effects associated with chlorhexidine gluconate oral rinses include an actual increase in calculus formation, stomatitis (an inflammation of the mucosal lining of the mouth and gums), and an inflammation of the salivary glands. (happytailsspa-blog.com)
Anti-bacterial prescription anti-biotics and shampoos that contain Chlorhexidine such as Duoxo are used to treat skin infections. (dog-health-guide.org)
This can be cleaned off with a dilute chlorhexidine solution or gentle pet shampoo if it is difficult to remove. (vetbabble.com)