What is the correct way to use Red Potion

Red Potion, Mercury Bromide Solution, is a 2% topical solution applied to wounds on the skin and can be used as an antiseptic, and is contraindicated in allergy sufferers.
Clinically, the correct way to use HgBr solution is mainly for external application, patients can use 2% HgBr solution to be applied to skin wounds externally. In addition, Hg Bromide solution is mainly used to dissociate mercury ions and act as a bactericide.
It should be noted that some patients may experience adverse reactions such as skin magenta color after using HgBr solution, and patients who are allergic to HgBr solution are prohibited from using it to prevent allergic symptoms such as respiratory difficulties and skin rashes.
Mercury bromide solution is mainly a topical drug and is used to sterilize skin wounds. It is recommended that patients with traumatic skin injuries go to the hospital in a timely manner, under the guidance of the doctor to use, try to avoid self-medication.