Red Potion, commonly known as Mercury Bromide Solution, is used as an anti-inflammatory and anti-infective agent for mucous membranes and small wounds with disinfectant and antiseptic properties. The main ingredient of Hg Bromide Solution is Hg Bromide, which is an organic mercury disinfectant and antiseptic. It is an organic mercury disinfectant and antiseptic. It has the effect of disinfection and sterilization, and is mainly used for the anti-inflammatory and anti-infection of mucous membranes and small wounds in clinical practice. Mercury bromide solution can sometimes cause local allergic reactions; in addition, mercury bromide solution can cause the skin to stain red. Mercury bromide solution is a topical medication and should not be ingested. It should also not be used with iodine, as it may produce toxic substances that can cause skin damage. Mercury bromide solution is contraindicated in people who are allergic to mercury and should be used with caution in pregnant and lactating women. Patients should seek medical attention for any severe, persistent, or progressive symptoms that occur during use of the medication.